5 Best AR-15 80% Lowers in 2020: Review

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Winner
AR-15 80% Lower
AR-15 80% Lower
Best Value
AR-15 80% Lower
AR-15 80% Lower
AR-15 80% Lower
AR-15 80% Lower
MATRIX ARMS - AR-15 80% LOWER RECEIVER FORGED
PSA AR-15 COMPLETE LOWER MAGPUL MOE EDITION WITH GEISSELE SSA-E TRIGGER
PSA AR-15 COMPLETE LOWER - MAGPUL CTR EPT MIAD EDITION
POLYMER80 - AR-15 80% POLYMER LOWER RECEIVER & JIG KIT
ANDERSON MANUFACTURING - AR-15 80% LOWER RECEIVER
Our Test Result
Test Result 9.9/10 Excellent November 2020
Test Result 9.7/10 Excellent November 2020
Test Result 9.5/10 Very Good November 2020
Test Result 9.4/10 Very Good November 2020
Test Result 9.2/10 Good November 2020
Value for Money
Performance
Pros
  • High quality material
  • Very durable
  • Good value
  • Available in two versions
  • Very precise
  • Best price-performance ratio
  • Easy to install
  • Drop-in solution
  • Very reliable
  • Compatible with many magazine types
  • High quality materials
  • Very reliable
  • Great quality
  • Good price
  • Quick to install
Cons
  • None
  • None
  • A bit heavy
  • A bit pricy
  • None
Recommended by us
Winner
AR-15 80% Lower
AR-15 80% Lower
MATRIX ARMS - AR-15 80% LOWER RECEIVER FORGED
Our Test Result
Test Result 9.9/10 Excellent November 2020
Value for Money
Performance
Pros
  • High quality material
  • Very durable
  • Good value
Cons
  • None
Recommended by us
Check Price
AR-15 80% Lower
AR-15 80% Lower
PSA AR-15 COMPLETE LOWER MAGPUL MOE EDITION WITH GEISSELE SSA-E TRIGGER
Our Test Result
Test Result 9.7/10 Excellent November 2020
Value for Money
Performance
Pros
  • Available in two versions
  • Very precise
  • Best price-performance ratio
Cons
  • None
Recommended by us
Check Price
Best Value
AR-15 80% Lower
AR-15 80% Lower
PSA AR-15 COMPLETE LOWER - MAGPUL CTR EPT MIAD EDITION
Our Test Result
Test Result 9.5/10 Very Good November 2020
Value for Money
Performance
Pros
  • Easy to install
  • Drop-in solution
  • Very reliable
Cons
  • A bit heavy
Recommended by us
Check Price
AR-15 80% Lower
AR-15 80% Lower
POLYMER80 - AR-15 80% POLYMER LOWER RECEIVER & JIG KIT
Our Test Result
Test Result 9.4/10 Very Good November 2020
Value for Money
Performance
Pros
  • Compatible with many magazine types
  • High quality materials
  • Very reliable
Cons
  • A bit pricy
Recommended by us
Check Price
AR-15 80% Lower
AR-15 80% Lower
ANDERSON MANUFACTURING - AR-15 80% LOWER RECEIVER
Our Test Result
Test Result 9.2/10 Good November 2020
Value for Money
Performance
Pros
  • Great quality
  • Good price
  • Quick to install
Cons
  • None
Recommended by us
Check Price

5 Best AR-15 80% Lowers

The new popular rate for AR-15 lowers is eighty per cent. This unfinished receiver is low in price and helps the user avoid specified legal formalities while enjoying the fact that the receiver itself is being machined.

Here, we ‘re going to talk about what the Best AR-15 80% Lowers receiver are, how much work and effort is needed to customize it, and the legal requirements related to it. We ‘re even going to talk about significant things to remember before purchasing the best AR-15 80% Lower Receiver for yourself.

This article also outlines some of the best options that are currently available on the market to help you out with this task.

What’s an 80% Lower Receiver?

The Best AR-15 80% Lowers receiver is nothing but a plain milled or forged metal item that appears like an AR-15 lower receiver except without the cavity of the fire control group. Put in a simplistic way, it’s an incomplete AR-15 lower receiver allowing the customer to do some drilling & milling to make it working.

The part where the trigger assembly is installed is solid, and this part must be drilled and machined by the user to convert it into a lower receiver.

Legally a lower receiver is known to be a weapon itself and thus needs a serial number on it. This is because a lower receiver holds the fire control group and integrates all of a rifle ‘s essential practical components.

Best AR-15 80% Lowers in 2020 review test

Because of its unfinished design, the ATF does not consider that type of device to be a firearm. That means a serial number is not required for sale and purchase. A rifle made with such a receiver can be owned and used, at least under federal law, in the state , county, or city in which you reside without any serial number.

At the other side, the ATF advises that consumers of these self-made AR-15 rifles engrave any sort of serial numbers or data on these receivers. It assists in the case that these weapons are misplaced or stolen. (For the purposes of our article we will try to remain apolitical here).

It is important to note here that if used solely for personal use, an 80 per cent lower receiver is not considered a firearm. If you are finishing this receiver for a firearm to be distributed or exchanged lawfully in the future, it will carry a serial number according to 27 CFR 478.92 regulations. You can always consult with the local laws and legislation on weapons beforehand.

Legal Requirements for registering a Lower Receiver  

Legally, there is no requirement to sign up the Best AR-15 80% Lowers receiver or have a serial number. They are allowed to be sold to someone who has or has not an FFL. An individual who buys an AR-15 rifle is allowed to automate it and drill it to create a full lower receiver.

Under federal legislation, such guns are not expected to have a serial number. Make sure to be mindful of the rules of your own state (watching you, Californians!).

However this weapon can not be moved or sold by the owner. If the user intends to sell or transfer such an AR-15 then he / she must register and serialize his / her weapon.

Sale and exchange rules are very complex. That’s because once you’ve made something for your own use you might give others such a tool. In the opposite, if you invented such a device with the purpose of gifting it, you will need to make sure that it is serialized.

The trick here is if anyone (like police) can demonstrate your intention. Confusing, right?

None of the above is legal advice. We show only one’s own interpretation of the rules. Local laws too can differ.

Factor for Buying the Best AR-15 80% Lowers

Until picking a Best AR-15 80% Lowers receiver for configuration, there are some considerations you will need to take seriously. Including:

Material

The material is the first and most critical element to remember when picking an 80 per cent lower. In fact, the lower receivers are constructed of either aluminum or polymer.

Aluminum can be further classified into types 6061-T6 and 7075-T6, where the former is more of a general-purpose substance and the latter is high-quality and longer lasting.

Best AR-15 80% Lowers of aluminum, as pure metal, are a little rough to mill and to drill. At the other side, polymers are smoother and need less customisation work.

In the opposite, aluminium is more durable than rubber and lasts longer. We consider utilizing lowers in aluminum but that is also a question of personal choice.

Finishing

In general, eighty percent lowers are anodized hard-coat type II or type III which makes them abrasive and corrosion-resistant. Many lowers bear various finishes, such as cerakote and duracoat.

It may not be a good option to purchase anodized 80 percent lower. This is because you’re going to be milling and drilling the receiver to customize it, which will eventually expose the metal’s inner layers that aren’t anodized.

It ensures you would have to anodize the lower receiver upon completion. Therefore it is better to stay 80 percent lower with the non-anodised or simple aluminum.

On the other hand, polymer receivers are not faced with such a problem as you only expose layers of the same material during machining.

Different brands

Always aim to buy from a well-known manufacturer or a trusted firearms dealer an 80 per cent lower receiver.

To be drilled and machined for completion, eighty percent lower ones are required, so they must have tight tolerances and precise working points.

Hit-or – miss items may be shipped by low-grade suppliers, and will ultimately give you problems when you start finishing.

Design

You want a nice look to your guns, right? Aesthetics is often an essential part of design when picking an unfinished lower.

Consider the 80 percent lower colour, design and any engravings to match your aesthetic needs.

Test of the Best AR-15 80% Lower Receivers 

Let’s look at some of the top models that meet our requirements for a piece of equipment you can create your own weapon around.

Ranking First: MATRIX ARMS – AR-15 80% LOWER RECEIVER FORGED

Pros

  • Resistant in any weather
  • Great Design
  • Will fit with any AR-15 model
  • Simple Installation with only few tools
  • Constructed to be very durable & resistant to almost any damage

Cons

  • Could not be compatible with some caliber rifles

What the latest Buyers say

This 80 percent lower receiver gained much praise from the majority of consumers. Within a few minutes they managed to mount this quickly without trouble. Most of them either used this as an update, or as an add-on to a building project. One consumer claimed it also supports many lower receiver parts.

Why it is the Best AR-15 80% Lower

This is built from the strong kind of aluminum known as aluminum 7075 T-6. It can withstand a lot of hits, and has the ability to endure longer than any lower end receiver. Beyond that, most upper receivers operate well. And if you’re searching for anything comparable to the best performing, you ‘d be hard-pressed to find anything comparable than this Best AR-15 80% Lower.

For the renown retailer, Brownells, this is a solid 80 per cent lower receiver. Machined from 7075-T6 forged aluminum this lower one comes with a takedown lug pocket.

Also the broached magazine helps to change mags conveniently when this receiver is completed. The receiver is compatible with a wide array of jigs so if you already have one, you don’t need to buy a new jig.

The receiver is multi-cal, and will fit any AR-15 Upper Receiver standard. It’s offered in anodized and non-anodized hard-coat versions and you can pick the one you want.

The variant built from aluminum billet is equally priced and carries a respected brand name.

Who should buy this Lower?

This will likely be put to good use by most AR-15 users looking for an upgrade from a lower default or as an addition to a project to build a rifle. For all the right reasons, this is a must-have accessory anyway. If you need an 80 per cent lower receiver that complies with state and federal laws, you might need to look at this high quality item.

Verdict 

Brownells’ AR-15 80 per cent lower is one of the best factory replacement lowers you can find for an AR-15 hands-down. Just add this in minutes and you’re going to be good to go for your next application.

Ranking Second: PSA AR-15 COMPLETE LOWER MAGPUL MOE

Pros

  • Great fit on a lot of upper receivers
  • Just takes some minutes to install
  • Can be combined with many lower receiver parts
  • Very good quality, hard to damage
  • Compatible with .223 caliber AR-15 rifles

Cons

  • None

What the Buyers reported

With this lower receiver new buyers were very pleased. They said this provided for most weapons to be modified more comfortably. Some others have decided to use this 80 percent lower to attach firearms that they were constructing from scratch. They did not have any concerns regarding the fit and finish, nor did they worry regarding adding any lower receiver pieces that go along with the lower ones themselves.

Why we recommend it

This 80 per cent lower is robust and can take a lot of abuse if you actually end up slamming on it somehow. It’s also one of those lower receivers that can fit with just about every lower sections of the receiver you want. So this lower receiver should allow the assembly phase even simpler if you have an abundance of parts to make it functional.

This 80 percent lower receiver was machined from 7075-T6 cast aluminum and allows the customer the ability to cut out the internal pocket itself.

The exterior machining has already been completed and the consumer just needs to finish machining the hammer and trigger pocket.

This receiver supports the NATO 5.56 cartridge and is compliant with all regular upper AR-15s. It is offered in black and non-anodised anodized hard-coat versions.

The receiver is made black, and appears aesthetically appealing. It also features a takedown lug pocket, enabling the consumer to take on an advanced AR design.

Who should buy this lower

For users who are designing an AR-15 weapon from scratch this would be fantastic. And, if you require any pieces to render the project a big one, one of the items you’ll require would be an 80 per cent lower. Note, this often includes a number of lower-parts sets. If you know which parts you need, be sure to include them in the package that you want.

Verdict

If you intend to create a weapon from the ground up, the Matrix Weapons AR-15 80 per cent lower is potentially your better option for a lower receiver. At the same time, you’ll be able to create a legal compliant AR-15 and a lot of fun to use after you’re finished.

Ranking Third: PSA AR-15 COMPLETE LOWER – MAGPUL

Pros

  • Great fit for many upper receivers
  • Takes little time to install
  • Compatible with many lower receivers
  • Really durable, hard to damage
  • Good Fit for .223 caliber AR-15 rifles

Cons

  • None

What the Buyers are reporting

As expected, this lower receiver satisfied lots of new users. Most were owners of a version of the caliber .223. They managed to match this with ease on several of the upper receivers without needing to render any changes to the rifle itself. One user said he could add some drop-in parts to the lower one and once everything was finished it operated like a well-oiled machine.

Why its in our ranking of the Best AR-15 80% Lowers

This 80 percent lower is exclusive to those who use AR-15 rifles with caliber rounds of .223. One of all  aspects that stand out is that it’s made of polymer with great quality. Concluding, it is pretty robust. It can handle being thrown, kicked or scuffed around. It is not going to crack and it definitely is not going to split quickly. So if you want a lower receiver that’s going to be tough to destroy, you ‘d be crazy to give up the chance to look closer at this.

This Gen 2 80 per cent lower receiver from PSA, made from high-grade polymer, is easy to customize and install. The price for a lower made out of polymer is very fair.

The receiver is designed to fit all AR-15 parts perfectly, and features pre-machined areas such as buffer tube threads, the bolt release cavity, and the rear pivot pin. The receiver also features a trigger guard.

 This is extremely durable and, in some cases, comparable to an aluminum receiver, even though it is made out of polymer. This is a multi-cal lower receiver, suitable for most uppers of the AR-15 models.

Just be sure to customize it correctly, since the manufacturer will not accept returns after any product changes!

Who should buy this Lower

This lower one is going to be great for AR-15 owners shooting .223 rounds. If you’re a hunter or a target shooter looking for an upgrade, you can start by upgrading with this lower receiver. If you do a full-on upgrade of your rifle, this little unit should fit the bill.

Verdict

The PSA AR-15 COMPLETE LOWER – MAGPUL Receiver could be exactly what you need if you want something high quality and can handle lower receiver parts of all kinds. If you want a lower receiver enabling superior functionality, this is your cup of coffee.

Ranking Fourth: Polymer80 AR-15 80% Polymer Lower Receiver and Jig Kit

Polymer80 AR-15 80% Polymer Lower Receiver and Jig Kit review test

Pros

  • Really durable
  • Very simple to install, ideal for beginners
  • Finish & Fit are excellent
  • Awesome for many applications
  • Perfect for building projects or upgrades

Cons

  • Some fitting may be required

What the latest Buyers reported

Many recent buyers were satisfied with this lower receiver ‘s longevity. Before examining it again they managed to shoot off as many as 1000 bullets. Sure enough, after too many bullets, it could control its own. Beyond that, most consumers have been able to match it on several upper receivers.

Why we recommend it

Polymer appears to be one of the best components that a lower receiver may be using, rather than aluminium. With too many heavy-duty applications, it will endure beatings, and preserve its own. On top of this, it is also compatible withmany of the bottom half of AR-15 rifles. And if you need any drop-in bits, you can fit them in full with this 80 percent lower.

Polymer80 gives the highest value for your money to this polymer 80 per cent lower receiver. The bundle includes a lower receiver, which is unfinished along with a jig kit which makes customization a breeze.

Even the jig kit contains the necessary end mill bits and other parts, so you don’t need to collect equipment and materials.

Printed in black, white, dark earth and gray colors, this model provides many choices to support you improve your weapon aesthetics. This is compliant with REM.223, and NATO ammunition.

Who should buy this

This is likely to be used by beginners, who create their first AR-15. Unless you are not comfortable with the procedure, it is going to take some time to work out details. So if you choose to continue with a lower and you can put in the last 20 percent later, the lower 80 percent might be just what you’re searching for.

Verdict

Of those constructing an AR-15 from scratch, the Polymer80 AR-15 80 per cent Polymer Lower is a strong start. Also if you have never had done one before, the simplest to use is this lower version. And if you want an add-on that is going to be the nearest thing to a drop-in, it’s going to be effective.

Ranking Fifth: Anderson Manufacturing AR-15 80% Lower Receiver

Anderson Manufacturing AR-15 80% Lower Receiver review test

Pros

  • Ease of Installation
  • Well machined
  • Durable material
  • Compatible with many lower parts
  • Also fits for many upper receivers

Cons

  • Some had problems with the rear takedown pins

What the latest Buyers are saying

Most recent buyers just had good stories to tell regarding Best AR-15 80% Lowers recipient. They said they could drill the holes without oversized or over-drilling issues. This lower receiver was simple to mount and only took five minutes to finish. One consumer said his lower receiver used drop-in parts and they worked like a charm without any jamming or compatibility problems.

Why do we recommend it?

This receiver of 80 per cent sticks out as one of the best on an AR-15 model. Plus, it comes unfinished and you may want to paint it because you want to make sure your weapon looks great. It could even be the best AR-15 80% Lowers, which fits with many AR-15 rifles, that are part of a building project.

For better reliability and efficiency, Anderson Manufacturing produces this unfinished lower receiver built from cast 7075-T6 aluminium. The receiver is extremely fair in price, compared to is build quality.

Operations left to be done require milling of the fire control group, trigger and hammer pins and the selector safety hole. Once done the receiver is multi-cal and gives the customer comprehensive configuration choices.

This receiver is manufactured in the U.S.A. and has been built to follow mil-spec requirements, and you can be confident of the performance. A jig is not included with the kit and you would need to order or pay separately for it.

Few users have problems with the Anderson Jig so before purchasing, you may suggest searching elsewhere or doing some testing.

This receiver is ideal for building a rifle for target practice and offensive purposes.

Who needs this

This Best AR-15 80% Lower is great for builders. When you’re searching for a easy upgrade to your AR-15 rifle, the lower one should do really good for you. Above everything, you’ll need to dedice for a finish that suits your design and choice. See if you are getting a finish that will make your rifle stand out.

Verdict

When part of your weapon building development, the Anderson Manufacturing AR-15 80 percent Lower is the one kind of lower you want. You should have the makings of an AR-15 by the time you mount this, and can be a power to be dealt with, either on the range or out in the field.

What is an 80% lower?

Black rifle fans and hunters used aluminum and polymer receiver blanks to construct their AR-15s at home without the need to license or serialize them. Officially named an 80 lower (or 80% lower), such receiver blanks at the point of buying are not technically deemed to be weapons. Yet what is an 80 per cent lower exactly? How does it work, what does it do and how do you create your own black rifle (or pistol) on one on your own? Can it be legal , and how? Here is your  complete guide.

Best AR-15 80% Lowers review test

The 80 per cent lower is a blank receiver, an unfinished weapon that can not be worked without further manufacturing. An 80 percent lower unfinished can’t fit a trigger or parts set, because it can’t be made to shoot. Regardless of that, the Bureau of Alcohol , Tobacco, and Firearms (ATF) does not legitimately see 80 per cent lower as forms of weapon receiver blanks.

Completing the lower “blank” ensures you can mount a lower parts package and all the materials you need to create a functioning AR weapon or firearm. For AR-15s chambered in 5.56/.223 and 300 Blackout, 9 mm AR9, and the .308 Winchester-chambered LR-308, such receiver blanks exist. Occasionally, the LR-308 is mistakenly labeled an AR-10, so we’re going to expand on that afterwards.

What is a Stripped Lower Receiver?

The stripped lower receiver is the only component of the AR-15, which is deemed a weapon under federal legislation as it will operate with mounted trigger and parts kit. 

The Best AR-15 80% Lowers is an alternate way than purchasing a stripped unit at the local gun shop . For an AR-type rifle, cutting and drilling a receiver blank essentially transforms it into a stripped lower receiver.

Differences between an 80% and Stripped Lower

You know now what the legal differences are between 80 lowers and AR-15 receivers. Second is a weapon and first is not. Yet how do they actually vary physically? A stripped receiver is allows installation of lower parts kits, buffer framework, and upper receiver.

Here’s what has to be achieved to get an 80 per cent lower operational:

  • Drill a trigger pin hole
  • Drill a safety selector lever hole
  • Drill a hammer pin hole
  • Machine a fire control group cavity

And here’s what’s already been fabricated for you

  • Pistol grip hole
  • Magazine well
  • Bolt catch
  • Buffer detent hole
  • Front and rear takedown holes
  • Magazine release
  • Upper receiver rear lug pocket
  • Buffer tube threads and housing
  • Trigger guard pin holes

Advantages of Using an 80% Lower

Having and machining an 80 percent lower for your AR model to have a full stripped lower receiver offers several special benefits:
  • You can ship it straight to your home
  • No extra fees
  • It’s not considered a firearm
  • No FFL license required to buy one
  • It’s very easy to build with no skills needed
  • No serial number required
  • No Registration needed

Info: Local laws can vary for the statements above, but they are true for most states

States like California involve applying to a background test before finishing it to get a special serial number for the Best AR-15 80% Lowers. Also research the laws before you purchase and build. Yet how does federal legislation treat all this receiver blank business, at all?

The 1968 Gun Control Act (GCA) controls much of America’s firearms regulations and the ATF enforces and oversees them. Yet the GCA or the ATF don’t formally accept any of those words.  So what are you calling them then?

What ATF Defines Blanks for Receiver:

’80 percent receiver,’ ’80 percent complete,’ ’80 percent complete,’ ‘unfinished receiver’ are often words relating to an object that others might claim has not yet entered a processing stage that satisfies the 1968 Gun Control Act (GCA) concept of a firearm frame or receiver.

They are not legislative words used or approved by ATF.-Bureau “of Alcohol , Tobacco, Firearms, and Explosives (BATFe).

Are 80% Lowers legal?

Although the ATF has no clear word or rule, if correctly calibrated, 80 per cent lowers are legal, if they are manufactured correct:

Best AR-15 80% Lowers

“Receiver blanks which do not follow the description of a” firearm “shall not be subject to GCA legislation. The ATF has long maintained that products such as receiver blanks, “castings” or “machined heads” in which the region of the fire-control cavity is fully strong and unmachined have not entered the “process of manufacturing” which would contribute to the registration of a firearm by the GCA.

Will I require an FFL to buy Best AR-15 80% Lowers?

No.  Buying a blank receiver does not require an FFL, nor does it demand when you construct one. There are several differences in state and municipal rules, so research those too. This is how federal laws cope with this:

According to BATFE: “Those who produce recreational weapons for their personal use do not need to obtain Federal Firearms Licenses (FFLs), although we recommend that the manufacturer at least mark the weapon with a serial number as a precaution in case the weapon is misplaced or stolen. However, the firearm will be marked as needed under 27 CFR478.92 before it is marketed or otherwise lawfully shipped.

Note: The ATF recommends you can serialize the Best AR-15 80% Lowers but in most states this is not necessary.

Tools for finishing the last 20 per cent of an AR 15

It’s easy to execute the four machining phases above. Overall machining period may differ but in 2 hours or less, most first-timers have the job finished. Experienced builders will complete a lower with the right equipment in about 30 minutes.

You’ll require an 80 percent jig when it comes the to equipment to get the job done. You can do all these things yourself whether you have ever done simple home maintenance items, using a router or drill, or placed your hands on any power tools.

If you’d like more info on these measures, check out our guide to see what a jig is and how it functions.

Available Types of Blank Lowers

Here are the four kind of 80% lowers you’ll find compatible for your build:

Forged Lower  

As the name suggests, it is produced from a cast aluminum alloy that forges 80 percent lower: Mil-spec 7075 T6 aluminium. This is the same alloy that the military is using to construct its standard issue M4s and M16s. Forged units are cheap and easy to manufacture making them affordable but durable. 

Best AR-15 80% Lowers

If you want the strongest of the tough, the way to go is a forged 80 per cent lower. Forged lowers are for that purpose the most common option among most builders. 

Billet Lower

Billet lowers are also pretty popular and easy to machine. Billet 80 lowers are made of an aluminum alloy, 6061 T6 billet aluminum, just like forged lower ones. Billet 80 percent lower scrape and dent a little easier compared to a lower forged version, and billet lowers dosuffer more easily from machining mistakes compared to a forged one. Billet lowers are also useful for tailor made manufacturing. Billet alloy can be worked more easily to create complex forms. Billet lowers generally give owners a more aesthetic finish. 

Cast Lower

Cast lower ones are usually unsafe. As the name suggests, cast lowering is achieved by pouring aluminum alloy into a molding. The problem with cast lowers is that small air pockets and imperfections are created through the casting process. 

The effect is a weaker one and may not be able to withstand the stresses of a shot bullet. Lower casts will snap, crack or even burst. Although a cast 80 lower could fail during the machining process. This could result in metal alloy or tooling bits flying in your face. Nobody wants this. Avoid casting at all costs 80 per cent lower. 

Polymer Lower 

Best AR-15 80% Lowers of polymers are relatively new. They are made of a polymer reinforced with nylon, just like what submachineguns and glocks are made of. Often, lowers in silicone are the simplest to process. You could finish one with a hammer, snips, and hand papers, if you chose to. 

No router needed. In the beginning, polymer lowers had a bad rap but they were used in many AR builds and offer a lightweight alternative to forged or billet lowers. Usually, although finished with a lower parts package, they weigh 50 per cent less. For more detail about how to render lower, please see our guide on how to clarify. 

Things to look for when you buy a 80% Lower   

Not all lowers of 80 per cent are made equal. A lot of manufacturers can get their hands on aluminum and start building units because they are not regulated by the ATF. Here are a few items you can check for when you purchase one: 

Gravures 

Most of the Best AR-15 80% Lowers have pre-graved “FIRE” and “SAFE” but not always. We recommend buying a lower one which has already graved this. It is a core security feature. If you’re a machinist and you want to do your own gravure, then a raw 80 lower can save you some cash, because there’s no one. 

External Dimensions 

Some of the Best AR-15 80% Lowers are built with some features, or they will have a custom look on them. Lowers containing unique shapes or unusual configurations may not fit certain jigs. If using one, double test consistency with the jig. If the front and rear take-down holes and buffer tube housing are used for your jig to match it (and not the receiver walls or magazine well), otherwise you will be good. 

Fitting 

Much like every AR15 from store, two buffer tube diameters come in 80 percent lowers: commercial and mil-spec. Industrial buffers weigh 1.168. “Buffers with Mil-spec test 1.148.” Only make sure you have the correct buffer assembly for your lower one. 

Compatibility of the parts 

If you’re not careful this one can be a huge challenge. Lowers chambered in 5.56 and .223 are fairly universal and can accept any AR15 components. Many systems such as the AR9 and the LR308 demand that different modules function together. 

Best AR-15 80% Lowers

When you purchase parts to complete the building, doublecheck measurements and details of the fitments and ensure sure they comply for the base and lower. 

Conclusion

You now should have all the information about 80 per cent lower recipients you need. If you haven’t had the time to read everything through, here’s a quick summary: 

  • A firearm receiver blank is a 80 per cent lower
  • It is not a weapon, that’s why you can buy one online
  • To complete one you need some basic tools and equipment
  • Finishing out an the Best AR-15 80% Lowers helps you to create your own AR-15
  • For a majority of states the finished firearm does not need to be serialized or registered

Benefits of Building with the Best AR-15 80% Lowers

You know what an 80% lower is by now, and you have a general idea of how to build an AR-15. But when it comes to getting your hands on the firearm itself — the stripped bottom receiver in this case — why bother? What are the benefits of using the Best AR-15 80% Lowers compared to buying a branded lower from an FFL or dealer for your AR build?

No extra taxes or fees

You don’t pay just the typical sales tax when you buy a gun. Most states have imposed higher taxes on sales of guns and others have been tackling fees. Extra costs, government courtesy, may include “firearm security testing” fees, “safety and enforcement” fees, paperwork and transaction fees, record-keeping fees, etc. In certain jurisdictions, purchasing your pistol will cost up to $ 100 or more, and this doesn’t involve the weapon’s quality per se.

New York allows you to have a shotgun / rifle permit of $140 just to be able to buy a firearm. But it’s not called a weapon unless you purchase an 80 per cent smaller. That means you don’t get bogged down with all of these extra costs. You just pay the retail price and the standard sales tax, just as you would for any other consumer goods.

No FFL or other bureaucracy required

Besides paying all those extra costs just to get your hands on your new rifle or handgun, you must also handle the paperwork of the ATF and transfer your weapon through a Federal Firearms Licensee, or FFL. If the latest weapon was bought electronically and delivered to an FFL, or ordered directly from a retailer, each sale allows you to fill out Form 4473, the “Firearms Sales Log” of the ATF. This document needs further fees to be charged, once again.

You will foot the bill for the document collection and compensate for the background search. FFLs and dealers set prices on these two added costs, sometimes more, which can go as high as $50 per transaction. Yet it delivers straight to you as you order about 80 per cent smaller.

You don’t have to get the Best AR-15 80% Lowers sent to an FFL, you don’t have to fill up a Form 4473 and you don’t have to apply for some extra documentation or background search collection.

Your Rifle is not registered

Currently federal legislation forbids the government from establishing some form of weapons registry. But that doesn’t stop the government from keeping records of both you and your firearm. Some states, such as California, keep in the books what amounts to a firearm registry, tracking both your firearms’ make, model, and serial number and all your personal information.

Best AR-15 80% Lowers

Also the federal government unofficially gets away with it. The ATF requires all licensed gun dealers and FFLs to keep physical records of each Form 4473 completed by you and all of their other customers. Dealers to hold those documents on place for at least twenty years.

When any official or law enforcement officer wants to do so, they may easily obtain certain documents and use the details to confiscate your weapons or violate your privileges under Second Amendment. These records were already used with Red Flag laws in states. No government agency ever tracks 80 per cent lower receivers.

They can not track down these types of Best AR-15 80% Lowers and receivers because they are not engraved with any markings or serial numbers identifying them. That ensures no federal body or any secret weapons registry will keep track on your guns, giving you privacy security the way the law planned.

No legal need to serialize the weapon

Since these Best AR-15 80% Lowers types are not firearms, they do not receive any type of unique serial number of pre-sale marking identification markings. When bought and delivered, however, they are not marked or graved.

And, you don’t have to serialize a weapon you’ve created for personal use under federal. Some states require serialization and have some 80 per cent lower restrictions in place, which we cover here.

No Dealer fees

Just a number of large manufactures make AR-15 components. Yet when the Best AR-15 80% Lower receivers are stripped, they are considered to be firearms. Any manufacturer that produces firearms must maintain an FFL and the additional costs of doing business as an authorized dealer.

The different brands that stamp their roll marks on those receivers before selling them also need to make a profit share. All of this amounts to mark-ups and additional charges which are typically passed on to you, the buyer.

But lowering 80 per cent is different. The maker sells them directly, and because they’re not considered firearms they don’t cost as much to produce. Thus these cost savings are passed on to you. That’s why the typical forged 80% lower cost only $50 to $70, while the majority of forged stripped lower receivers cost $70 to $150 or more.

Less cost of subsequent builds

Actually, making an 80 percent Best AR-15 80% Lower would cost more as opposed to having a lower stripped. You will need to buy a jig which lets you cut and drill the receiver to make it work. But you can complete multiple lowers once you own a jig without spending extra cash. Any time you decide to create another AR, just purchase another 80 percent machine and produce it using the equipment and bits you already possess.

Each time you purchase a pistol (especially in this situation any time you buy a completed lower one) you have to pay all the taxes especially fees, so that’s all added up. Instead of tossing all the money every day to the army, you can spend it only once and have the freedom to build your own weapon at home. You ‘re going to like more than one AR, in turn.

Installing a Lower one isn’t difficult

You don’t need to own special tools or complex machinery to make a functional receiver as Best AR-15 80% Lowers. This needs just an 80 percent jig, which involves the parts you like, and a drill or mill press.

No expertise is mandatory, and each jig provides step-by – step guidance explaining where and how to cut and drill the Best AR-15 80% Lowers. Total machining period for novice builders takes around 1 hour, while seasoned builders using a mill will complete a lower one in about 15 minutes.

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