5 Best .300 Blackout Bolt Carrier Groups (BCG)
It is no easy job to find the right BCG for a .300 Blackout.
The explanation is that the business is saturated with a lot of them.
Many are inexpensive and low-quality, making it hard to find a decent one that exactly suits a rifle.
We’ve taken the liberty of hunting down five of the strongest BCGs for a .300 Blackout to minimize the amount of headaches and lost time, nonetheless.
As of this writing, these are what we consider to be the strongest on the market.
We’re going to explain what a BCG is and the purpose of it before we unveil the list.
On top of that, we’ll give you a few fast tips on how to pick a BCG of high quality over a model of low quality.
What is a BCG, and how does it function?
BCG stands for Bolt Carrier Party, first off. It is supposed to be the .300 Blackout rifle’s core.
It is pretty much worthless without it. This is the engine, so to say, of your vehicle.
And, of course, if the vehicle does not have a working motor, it can not work.
So what would the BCG do with your rifle, exactly? It is built to guarantee that you have consistent shooting patterns and are less prone to glitch and jam.
The same can even be said about your rifle’s reloading system.
That’s what you ought to expect from a BCG of decent standard. It’s pointless if one always jams or causes you grief throughout the reloading process.
The bolt in this accessory is built to lead the next round through the magazine through the chamber that emerges.
It would also guarantee that the round is properly positioned and completely balanced such that it will not jam before ejecting.
Aspects to Remember Before Buying a BCG
The crucial thing is to realize what considerations are going to go into your decision making before you can suggest buying a BCG.
Not only is seeking out a product on a whim unwise, but it may also be a dangerous decision.
Not only can a continually malfunctioning accessory create issues for your weapon, but it may also pose a safety danger.
When selecting a high quality BCG, this should be worth bearing in mind.
With that in mind, before making a purchase, here are several things to consider:
If you are a .300 Blackout rifle owner on a budget, in your purchase choice, you would obviously regard price as one of your key considerations.
That is totally comprehensible.
One thing you ought to hold in mind is that in your decision, price should not be the only consideration.
The aim here is to find a high quality BCG that is sold at a price that suits most budgets.
The primary explanation is to guarantee that you avoid buying low-quality and cheaper goods and do not break the bank by purchasing it.
As stated, prior to everything else, consistency should always be a top priority.
That is why it is important to pay attention to which materials are used for the development of these BCGs.
They can typically be produced from a high-quality steel or aluminum nine times out of ten.
The chrome lining used on the inside of the BCG itself is one aspect to pay careful attention to.
It is meant to protect the interior from rusting or corroding.
If you see a BCG that does not, in fact, have this chrome lining, avoid it at all costs.
Without the correct lining, the durability will not be as long-lasting.
The BCG is, of course, what makes a rifle work. So, naturally, it needs installation.
How quick it is to install is the key thing to search for in a BCG.
The keywords you want to check for are “drop in” when seeking something that is quick to install.
Drop-in suggests that without the use of equipment or a gunsmith’s technical facilities, they are simple to mount.
Review of the Best BCGs for .300 Blackout
In our view, below are the five strongest BCGs for a .300 Blackout.
They are the best brands so far on the market at the moment.
While at some stage between now and next year the list could be open to adjustment, we think one of these has the potential to be yours.
Remember to read carefully through each of these, since they might have a function or two you can check a box for what you are searching for in a BCG.
Let’s start by taking a look at the best overall BCG on the market with that in mind:
Best .300 Blackout Bolt Carrier Groups (BCG): Brownells – M16 Mil-spec MP/HPT BCG
- High quality materials
- Very durable & robust
- Increases accuracy
- None really
Best .300 Blackout Bolt Carrier Groups (BCG)
This is great for anyone searching for an outstanding BCG that suits your budget as well.
Lucky for you, we found one in the M16 Mil-Spec BCG of a Brownells.
This completely assembled unit comes with the bolt itself, the bolt holder, and the pins you need (cam, shooting, and retaining fire).
We can’t ignore, clearly, the gas key that comes with this.
The bolt is constructed of high-quality steel for carpenters.
That is a fairly strong piece of steel in plain English.
The Brownells’ commodity will endure a number of checks after it’s machined.
More precisely, to guarantee the highest longevity, they are both heat-treated and shot-peened.
It can survive a decent amount of abuse or something else that can threaten to harm it if it passes with flying colors.
The bolt and BCG are stained in matte black and are intended to provide the look of mil-spec.
On top of that, you have a loaded gas key that has an extractor that contains red spring O-rings.
If you’re searching for a high-quality BCG at a price you can afford, then you could consider a BCG to be the best possible option for the Brownells.
You need a BCG that will help you work properly with your .300 Blackout rifle.
You want something that won’t drain the life out of your bank account at the same time.
This BCG brand from Brownells could be the best for a variety of users.
Verdict: Best .300 Blackout Bolt Carrier Groups (BCG)
We considered this to be one of the best, most inexpensive BCGs for .300 Blackout owners, as expected.
This is not a BCG type of “you get what you pay for ” You get more than what you’re paying for.
This might be a nice BCG for you, even though you’re on a budget, which might surprise you in terms of quality and results.
What you’ll get out of the Brownells brand BCG is super robust and smooth in overall quality.
2nd Best .300 Blackout Bolt Carrier Groups (BCG): 2A Armament – AR-15 BGG
- Enables less taxing shooting for the rifle
- Very quick to install
- Highly robust
2nd Best .300 Blackout Bolt Carrier Groups (BCG)
The next BCG we’ll have a look at is the 2A Armament AR-15 BCG.
Right off the bat, once you get it mounted, you’ll find that this is a lightweight BCG that won’t add any extra weight to your rifle.
Because you have at your hands a robust, fully-loaded .300 Blackout rifle, you have enough weight to carry it as it is.
Nearly every production test known to man has passed this BCG and proves to be a super tough and super durable unit for your weapon.
Heat-treated, shot-peened, and machined from extremely robust steel are each single piece of this BCG.
This is one tough puppy inside and out. This is a drop-in BCG on top of all that, which is simple to mount and ready to go the second it’s set up.
There’s no reason to worry about it if you find you need a gas block for your gun.
That is because the 2A Armament BCG would be in tune with the gas mechanism of your .300 Blackout gun.
The main surprise, this often fits all sorts of components such as coils, barrel lengths, and suppressors well.
This BCG can be changed through the Port Door.
That ensures that, just for the purpose of modifications, you do not have to disassemble the whole rifle.
Verdict: 2nd Best .300 Blackout Bolt Carrier Groups (BCG)
For a few good reasons, the 2A Armament BCG stands out as one of the strongest on the market.
This is supposed to withstand a severe pounding inside and out.
This will make your .300 Blackout rifle work like a well-oiled machine at the same time.
What surprised us the most was that the thought of having a gas block and disassembling a rifle only to make any small modifications was removed.
With that in mind, if you’re searching for a BCG that is simple to mount, easy to modify, and enables your gun to shoot quickly without jamming or other working problems, the 2A Armament is worth the extra look.
Best Value .300 Blackout Bolt Carrier Groups (BCG): PSA 5.56 Premium Full Auto BCG
- Very durable materials
- Very reliable
- Great for high volume shooting
Best Value .300 Blackout Bolt Carrier Groups (BCG)
Next, we’ll take a look at another fantastic BCG option. On this list, the PSA 5.56 Premium Full Auto BCG deserves a spot.
You’re looking at it right now if you’re looking for anything that is going to be outstanding in consistency and results.
This is done right here in the U.S.A., because it’s definitely assured to be the highest in performance and consistency.
Many makers of weapons also obey stringent rules to make this possible.
So if you see that in the U.S.A., any gun accessory is made, you know that the ideal place would be here for the best quality.
This is a shot-peened bolt, which indicates it was shot during testing.
This is meant for overall durability. Plus, it has also completed the pressure test with flying colors, indicating that it would be able to withstand high-pressure cartridges.
The BCG has a chrome coating on the inside to guarantee a long life, which ensures it would be immune to rust or corrosion.
This is a tough unit inside and out that can ensure sure your .300 Blackout rifle performs properly.
Verdict: Best Value .300 Blackout Bolt Carrier Groups (BCG)
PSA is considered one of the most reliable brands of weapons and components of all sorts.
They sell them at reasonable rates on top of that.
But you may want to choose the PSA brand if you’re on a budget and want a commodity that’s considered one of the best.
4th Best .300 Blackout Bolt Carrier Groups (BCG): Cryptic Coatings Mystic Bronze Complete BCG
- Great design & finish
- Very durable
- Great for different typs of triggers
4th Best .300 Blackout Bolt Carrier Groups (BCG)
Now, we’ve got the Cryptic Coatings Mystic Bronze Complete BCG next on the agenda.
This is one of six BCGs usable in high luster coatings of all sorts.
The aim of these coatings is to control the temperature, while the BCG provides the stellar output of your .300 Blackout rifle.
You can not only get a stellar result, but you should also anticipate this to reduce your rifle to a good deal of recoil and have efficient, consistent cycling.
You’re working with a BCG, in plain English, that will send you quick, non-jammed shots each time you pull the trigger.
The CC BCG will show itself to be a better substitute to some of the other high quality BCGs you’ll find on the market, no matter what your intended purpose for your .300 Blackout.
The interior is chrome-lined, meaning it will not be scratched and will be corrosion and rust prone.
There might be nothing better than the CC BCG if durability is anything you consider a top priority.
This is wear-resistant on top of that, so you may mark this BCG the last one you’re going to need to purchase for years or even decades.
Consider the Cryptic Coatings BCG as a finalist on your shortlist of potential acquisitions, if that’s just what you’re looking for.
Verdict: 4th Best .300 Blackout Bolt Carrier Groups (BCG)
In terms of BCGs for the .300 Blackout, this is potentially among the strongest on the market.
At this point, in the not so far future, we would not be shocked if this topples the highest rating on the list.
Not only does this play a part in the regulation of temperature, but it is often top-notch in overall efficiency and consistency.
Do not be shocked if you chose this for your BCG, if this puppy stays with you for a long time.
You’ll need a product that’s designed to last if you’re planning on keeping your gun for a long period of time, and the CC BCG is just that.
5th Best .300 Blackout Bolt Carrier Groups (BCG): Anderson Manufacturing – M16 5.56 BCG
- Very hard metals used
- Increases accuracy significantly
- Super reliable
- Needs some readjusting from time to time
5th Best .300 Blackout Bolt Carrier Groups (BCG)
Last, we’re going to look at the 5.56 BCG Anderson Manufacturing M16.
The bolt and the holder are also built of high-quality steel, which ensures that they would be rugged as nails and impervious to any type of abuse that you may think of.
Shot-peened? heckse. Thermally-treated? You’ve got it. Interior chrome-lined? Yep. Yep. Yep.
You should expect it to be immune to deterioration or rust, inside and out.
In other terms, for many years to come, this would fit hand in hand with your .300 Blackout gun.
In a black matte coating, all the sections and elements are stained, allowing it fit well with most .300 Blackout rifles.
Verdict: 5th Best .300 Blackout Bolt Carrier Groups (BCG)
The Anderson Manufacturing BCG is a battle-tested, hard-as-nails style of accessory that functions to provide your weapon with accurate, non-jamming shots.
You should trust your weapon to fire well until mounted and be able to cycle properly without any complications to speak of.
It is simple to mount this BCG and very fast to put to good use.
Get the Anderson Manufacturing BCG if that’s what you’re looking for in an accessory such as this.
Full-Auto vs. Bolt Carrier Groups for Semi-Auto
So, what’s the difference between bolt carrier groups that are fully automatic and semi-automatic?
And is it lawful to possess them? The quick response to the issue of legality is yes.
However, prior to buying, it is necessary to double check the local and state rules, just to be sure.
Other than that, there is a rear lug in a completely automatic BCG that will force the sear release downward, enabling the gun to shoot in full auto mode (or burst shoot mode).
Semi-automatic BCGs are cut in particular, so they would not take up a ton of mass.
If you want the highest of durability, the lower volume of mass is indeed a bonus.
Compared to their full-car counterparts, Semi-Auto BCGs are more affordable.
It doesn’t have to be a struggle to find the right BCG for a .300 blackout.
However, if you want your .300 Blackout rifle to work properly, it is a must-have.
It may take some time to look, but it’s important to find the right one that suits your rifle correctly and can last you for years or even decades.
When you come across a BCG that you like before purchasing, make sure to do more in-depth analysis.
We hate the remorse of the customer and don’t want you to go through that.
So be careful to listen to what people are talking about it and, when the time comes to pick your own BCG, use your best judgement.
BROWE 4×32 Combat Optic with .300-AAC “Blackout” reticle
US-based BROWE Optics is launching a variant of its Combat riflescope with reticles for the increasingly popular .300-AAC “Blackout” caliber.
BROWE Optics, Inc. is a company based in Madison Heights (Michigan, USA)It sells DOCTER Optics and American-Defense-Mfg. mounts as well as its own brand 4×32 BCO (“Browe Combat Optic”).
This includes modern tactical riflescopes for numerous calibers and tactical applications as a robust, reliable and cost-effective alternative to well-known brands such as Aimpoint or Trijicon.
At the end of August 2012 BROWE announced the launch of a special version of the 4×32 BCO specifically for use with the .300-AAC “Blackout” caliber.
This is a cartridge that is gaining increasing popularity among American shooters.
BROWE 4×32 BCO optics are based on an internally adjustable optical system with roof prisms and an etched glass reticle, thus maintaining a short overall length.
This system has proven to be successful with products currently in use.
All BROWE lenses are precision ground from optical glass of the highest quality and are given an anti-reflection coating to make optimum use of residual light even in poor light conditions.
The reticle etched into the glass contains an LED with microprocessor technology and a cadmium sulfide photocell for measuring the target light conditions and automatically adjusting the reticle to the light conditions in the target.
The 4×32 BCO .300-AAC “Blackout” reticle is based on the popular horseshoe and dot system and features a BDC (Bullet Drop Compensated) reticle for subsonic and supersonic ammunition.
The 7-MOA horseshoe has an inner diameter of 5 MOA and an illuminated ring of 2 MOA for fast target acquisition.
The central point of 1 MOA enables the shooter to fire precisely and is designed to be shot with Supersonic ammunition at 100 m or Subsonic ammunition at 25 m.
For long-range precision, the 4×32 BCO .300-AAC “Blackout” reticle contains a BDC reticle that covers up to 900 m for Supersonic and 400 m for Subsonic ammunition.
The horizontal measuring lines stand for 48.3 cm at the specified distances.
The reticle also features a horizontal milli-scale.
The 4×32 BCO AAC .300 blackout reticle is available in four color selections (yellow, blue, green or red).
Standard on all 4×32 BCOs, illumination is automatically controlled by BCO target light sensor technology.
The target light transmission is measured and the reticle is automatically adjusted to the correct illumination level.
The 4×32 BCO also provides manual override if a uniform light level is required.
SIG SAUER Elite Performance .300 AAC Blackout
News- Update // SIG SAUER expands its in-house ammunition series Elite Performance with .300 AAC “Blackout” caliber rifle cartridges.
The ammunition is intended for sport shooting and tactical applications in the AR-15 range. By the way, this is the first rifle ammunition from SIG SAUER.
SIG SAUER Inc, the North American subsidiary of the well-known German company, expanded its defensive ammunition series Elite Performance by launching new loads and calibers at the SHOT Show 2020.
The largest and most important addition to the series is the .300 AAC “Blackout” charge, the company’s first rifle ammunition on the market.
Designed for the AR-15 platform, this subsonic cartridge features a SIG SAUER-style 220 grain open-tip bullet (OTM), which is equipped with SIG Sauer’s proprietary lead alloy core for improved precision.
At the end of 2020, the new Elite Performance ammunition series from SIG SAUER will be further expanded with a supersonic variant of this caliber, the manufacturer told us at the SHOT Show.
This recoilless cartridge is ideally suited for use with a silencer, which significantly reduces the sonic image and muzzle flash.
This makes this ammunition one of the favorites of sports shooters who want to protect their hearing and tactical shooters who want to avoid noise and muzzle flashes. Moreover, many hunters with modern sport rifles prefer this cartridge even for limited hunting applications.
Especially when using a silencer, it is fun to shoot “blackout” with the 220 grain subsonic .300 AAC cartridge.
It can be loaded into a standard STANAG 4179 magazine without loss of capacity.
Modern sport rifles with chambers for 5.56 x 45 mm / .223 Remington can be converted to .300 AAC “Blackout” simply by replacing the barrel or the entire top of the case.
The Elite Performance series from SIG SAUER will be further expanded in the coming months.
The range of rifle ammunition for hunting and the tactical market will be added and the pistol ammunition range will be expanded.