6 Best Left-Handed AR-15 Uppers (2020)

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Winner
Best Left-Handed AR-15 Upper
Best Value
Best Left-Handed AR-15 Upper
Best Left-Handed AR-15 Upper
Best Left-Handed AR-15 Upper
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
Stag 15L Tactical Upper
Stag 15L Bones Upper
F-1 Firearms Left Stripped Billet Upper Receiver
Stag 15L LEO Upper
Stag 15L M4 Upper
Our Test Result
Test Result 9.9/10 Excellent August 2020
Test Result 9.8/10 Excellent August 2020
Test Result 9.7/10 Very Good August 2020
Test Result 9.7/10 Very Good August 2020
Test Result 9.6/10 Very Good August 2020
Value for Money
Performance
Pros
  • Extremely accurate
  • Easy to assemble
  • Great reduction in recoil
  • High quality materials
  • Very durable
  • Highly accurate
  • Great materials
  • Quick to assemble
  • Customizable with picatinny rail
  • Great accuracy
  • Easy to install
  • Durable
  • Simple assembly
  • Very durable materials
  • Good value
Cons
  • None really
  • None really
  • Not compatible with every handguard
  • None
  • None
Recommended by us
Check Price
-
-
-
-
-
Winner
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
Stag 15L Tactical Upper
Our Test Result
Test Result 9.9/10 Excellent August 2020
Value for Money
Performance
Pros
  • Extremely accurate
  • Easy to assemble
  • Great reduction in recoil
Cons
  • None really
Recommended by us
Check Price
-
Best Value
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
Stag 15L Bones Upper
Our Test Result
Test Result 9.8/10 Excellent August 2020
Value for Money
Performance
Pros
  • High quality materials
  • Very durable
  • Highly accurate
Cons
  • None really
Recommended by us
Check Price
-
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
F-1 Firearms Left Stripped Billet Upper Receiver
Our Test Result
Test Result 9.7/10 Very Good August 2020
Value for Money
Performance
Pros
  • Great materials
  • Quick to assemble
  • Customizable with picatinny rail
Cons
  • Not compatible with every handguard
Recommended by us
Check Price
-
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
Stag 15L LEO Upper
Our Test Result
Test Result 9.7/10 Very Good August 2020
Value for Money
Performance
Pros
  • Great accuracy
  • Easy to install
  • Durable
Cons
  • None
Recommended by us
Check Price
-
Best Left-Handed AR-15 Upper
Left-Handed AR-15 Upper
Stag 15L M4 Upper
Our Test Result
Test Result 9.6/10 Very Good August 2020
Value for Money
Performance
Pros
  • Simple assembly
  • Very durable materials
  • Good value
Cons
  • None
Recommended by us
Check Price
-

6 Best Left-Handed AR-15 Uppers

If you want the perfect left-handed AR-15 upper, then you’re not alone.

Actually, you’re probably one of many left-handed shooters who want to enjoy shooting an AR-15 rifle like that.

For a lefty, aiming a right-handed rifle may be frustrating. Not just in the manner it has to be handled, but for the gunman, it often raises some safety hazards.

We have hand-picked six of the strongest on the market to help you locate the strongest left-handed upper.

These are the uppers that stand above the left-handed uppers of bad quality.

We’ll speak about the disparity between left-handed and right-handed uppers before we get to our list.

Plus, we’re going to speak about what makes an AR-15 left-handed upper stronger than the majority of the upper flooding the sector.

Left-Handed vs. on the Right Hand Uppers: What’s the difference?

The ejection port is one of the key variations distinguishing a left-handed upper from a right-handed one.

On the left-hand side of the weapon is a left-handed ejection port, and on the right side is the slide release of an AR-15 rifle.

The ejection port on the right side and the slide release on the left would both include a right-handed upper. Here are few benefits and drawbacks of any of the uppers:

Nothing will blow up

Think for a moment about this situation: you’re a left-handed shooter that can control a right-handed AR-15 somehow.

You fire a few shots and the brass flies at a quick pace out of the ejection point.

And right in the chest, it strikes you. Let’s hope it doesn’t reach your cheek.

Because at such a fast pace, the brass strikes you, it hurts you.

The ejection ports ought to keep away from your face so that, no matter what type you possess, the brass casings strike the ground and not your face.

When expelled, brass is still heated, so if it falls into contact with the skin, it can cause burns.

The Rifle Still Works the same

Best Left-Handed AR-15 Upper

While the AR-15 has certain variations in terms of what is left-handed or right-handed, most of the other modules would be built to perform the same way.

As a left-handed shooter, this implies that there are no other pieces made expressly to fit left-handed shooters. That means a lot of saved time and money.

What makes a perfect left-handed AR-15 Upper?

A large left-handed upper AR-15 consists of a few parts. If you’re a first-time shopper looking for an AR-15 upper (especially for lefties), it’s crucial to know how to discriminate between a decent one and anything deemed low in quality.

There is no easier way to figure out more of this than to look into the comments of people who have in the past purchased these kinds of uppers.

But we’ll compile this short list of tips focused on sales made by left-handed AR owners in order to save you time.

Material

The selection of gun material suppliers may decide the total efficiency of the upper one.

For example, two of the most common materials used by gun makers around the world are aluminum and polymer.

That’s how they’re known to be robust of all sorts.

Because a stock is composed of certain upper receivers, the stock is most definitely made of polymer.

It is built to resist heat, cleaning oils, and solvent damage.

Construction

The crucial point to pay careful attention to is this. The upper configuration would have the ejector port pointed at the upper receiver’s left edge.

On the right side, the side release should be in place.

If each component is on the other side, so it is not a left-handed upper receiver (i.e.—the ejector port on the right).

This is where, when searching for an AR-15 left-handed field, you may need to be a little sharper about your observational abilities.

Price

Best Left-Handed AR-15 Upper

If you are a bargain shopper, it is possible that the price would play a part in picking an left-handed AR-15 upper.

However, the expense may not be the “be all, end all” choice to purchase anything.

But you’re going to have to look at any secondary factors that are going to really make the expenditure worth it.

Value, particularly if the price tag seems to be reasonable, is something you can pay more attention to.

Many individuals also equate affordable and cheap costs for lower-quality parts and accessories.

The Best Left-Handed AR-15 Uppers review

Six of the strongest AR-15 left-handed uppers currently on the market are below.

Either of these uppers would definitely be an outstanding addition whether you’re planning to make an upgrade or if you’re contributing to an AR-15 construction project.

Be sure to carefully take notice of some of the attributes, along with what is included in the upper itself, while you browse through each chart.

Some have certain pieces that are much-needed and others won’t.

Often, take care of any personal requirements you might have (i.e.—which pieces do you wish to include? Which sections would need to be ordered separately?).

Now, let’s begin by knocking our “best overall” option off our list:

Best Left-Handed AR-15 Upper: Stag 15L Tactical Upper

Best Left-Handed AR-15 Upper

Pros

  • Extremely accurate
  • Easy to assemble
  • Great reduction in recoil

Cons

  • None really

Best Left-Handed AR-15 Upper

We’ll be looking at the Stag 15L Tactical Upper first on the list.

This is a professionally mounted upper receiver that contains a free-floating M-LOK rail that looks rugged.

And you’ll find straight off the bat that this will allow you the chance to tailor it to your preference.

So you’re going to want something as great as this if you happen to find an extra optic or scope laying around somewhere.

This has a barrel of 16 inches chambered in NATO 5.56×45 mm. An A2 birdcage flash hider is also included, built to help reduce a fair amount of recoil and retain the muzzle jump to a minimum.

In your precision game, this upper will certainly give you a lift.

But if you’re keeping everything to a high standard, you would want this to be the upper of choice.

Extra add-ons including your BCG, charging handle, and handguard are also included.

If you want these add-ons, though, there could be an additional fee on your end.

So if you can swing it and if you believe it is worth these additions, have them.

With that in mind, the Stag 15L Tactical Upper could be worth the investment if you’re searching for a rugged product that will allow for full flexibility and accuracy.

Verdict: Best Left-Handed AR-15 Upper

This upper more than deserves the “best overall” award.

It’s a robust, jam-packed upper alternative that will offer you a full-on opportunity to customize and help you develop the precision of your AR-15 rifle.

On top of that, for left-handed shooters it is even more welcoming.

If you’re a left-wing guy who just wants to have fun firing one of those guns, you may want to create one for yourself.

You need some of the best accessories to help turn it into a left-handed power to be reckoned with if you want to head down that path.

It begins out with such an upper receiver.

2nd Best Left-Handed AR-15 Upper: Stag 15L Bones Upper

2nd Best Left-Handed AR-15 Upper

Pros

  • High quality materials
  • Very durable
  • Highly accurate

Cons

  • None really

2nd Best Left-Handed AR-15 Upper

Now, we are going to have a peek at Stag 15L Bones Upper.

This is also another excellent left-handed choice produced at Stag Arms by the wonderful company.

It has a 16-inch barrel that is meant for carbine-length gas systems rifles.

This includes a low-profile gas block that will get the job done and help propel your shots to make your AR-15 weapon the envy of the range with a quick, high-performing velocity.

The upper is made using 7075 aluminum of good strength , making it a rather durable upper.

If you want something that can withstand all sorts of violence, this upper might be worth adding to your current rifle or construction project.

The upper half of this item will also allow you to configure it for your gain.

But you’ll only have enough rail room to turn it off if you have an optic or sight you like to apply to your rifle.

Let’s not ignore that an A2 Birdcage flash hider is also included here.

This means that you can get a significant decrease in the recoil.

Plus, a muzzle leap won’t be anything to think about anymore.

The Bones Upper will allow your left-handed AR-15 construct stand above the rest if you’re searching for an upper that will get rid of muzzle jump and rebound and offer your AR-15 head-turning quality.

Verdict: 2nd Best Left-Handed AR-15 Upper

If the concept of a free-floating M-LOK rail does not inspire you, the Bones upper is a fairly good choice for your AR-15.

Other than that, it also behaves the same as the other upper Stag 15L.

This is a really sturdy upper that’s meant to last you a long time.

Then if you’re searching for something that could be the only one for a long period of time that you’re going to purchase, the 15L Bones Stag Weapons is definitely the right one for you.

If you are planning on getting a carbine gas device for your AR-15 rifle, this is the best solution.

Best Value Left-Handed AR-15 Upper: F-1 Firearms Left Stripped Billet Upper Receiver

Best Value Left-Handed AR-15 Upper

Pros

  • Great materials
  • Quick to assemble
  • Customizable with picatinny rail

Cons

  • Not compatible with every handguard

Best Value Left-Handed AR-15 Upper

If you’re looking for a left-handed upper of good quality for your AR-15, however you’re on a budget, then we could just have one for you.

The F-1 Weapons Left Stripped Billet Upper Receiver is our option for the Budget Shopper.

This is a fully stripped upper built of billeted aluminum, which makes your AR-15 a really sturdy device.

And to have on either your new weapon or the AR-15 gun you are now constructing is a mighty fine addition.

For the left-handed shooter in mind, this is specifically intended.

It’s lightweight and simple to mount on top of that. So you’ll find there’s no extra weight until this is put in.

If you dislike the thought of dragging a heavy rifle around all day long, it is generally a positive thing.

If you don’t want to smash the bank, this is the left-handed upper you’ll want for your AR-15 rifle.

In terms of feature and efficiency, you will be shocked at how a decent budget upper receiver would do.

This is, in truth, the finest standard you can afford.

So if you’re searching for a commodity that suits the left shooter better at a price that matches most budgets, get the F-1 Firearms product.

Verdict: Best Value Left-Handed AR-15 Upper

If you’re looking for a stripped upper, this is certainly one of the best ones on the market.

This will give you an opportunity to make your AR-15 more secure by customizing and upgrading the hardware.

That the commodity itself is optimized for left-handed shooters is much better.

Best of all, this is an upper that suits a ton of affordable budgets.

You’ll definitely want a product that will encourage you to incorporate what you need, especially though you have cash to play around with. If that’s the case, for the Upper F-1 Guns.

4th Best Left-Handed AR-15 Upper: Stag 15L LEO Upper

4th Best Left-Handed AR-15 Upper

Pros

  • Great accuracy
  • Easy to install
  • Durable

Cons

  • None

4th Best Left-Handed AR-15 Upper

We’ll return to the Stag Arms brand next. When you are searching at all things left-handed for an AR-15, this brand is definitely one of the strongest.

We offer you the Stag 15L LEO Upper if you’re searching for the latest from the company.

This upper has a design (hence the name LEO) popular by law enforcement officers.

With the left-handed shooter in mind, it’s also designed.

This is built to make it one of the most robust upper receivers on the market from high-quality materials.

And it’s said to be battle-tested, and it might probably be the nearest thing it can come to the military-grade.

If you’re hoping for anything like that, the LEO upper from Stag may just be what the doctor ordered.

This entails a quad rail that is free-floating.

Not only will the rail help to increase the efficiency and precision of your shots, but it will also encourage you to configure your weapon exactly as you want it to be.

If you have a lens or a telescope that you plan to use, this might just be a better match for it.

Let’s not ignore that a 16-inch barrel chambered to work with 5.56 NATO rounds is included.

If you’re a Stag brand fan, you’re going to want something that’s perceived to be the best thing about the brand.

If you don’t want a top from other less reputable labels, the Stag 15L LEO Upper might just be the one you’ll want.

Verdict: 4th Best Left-Handed AR-15 Upper

If you’re a follower of the company Stag Arms, there may be nothing quite like its upper LEO.

This is an easy-to-install upper that better suits the left-handed shooter who needs exceptional performance and something similar to what the military and law enforcement officers have in terms of their AR-15 rifle.

When you’re in a target shooting or home protection case, this is the best product.

But you will have an upper receiver that is accurate regardless of the intent and will allow you to configure it to your advantage.

5th Best Left-Handed AR-15 Upper: Stag 15L M4 Upper

5th Best Left-Handed AR-15 Upper

Pros

  • Simple assembly
  • Very durable materials
  • Good value

Cons

  • None

5th Best Left-Handed AR-15 Upper

If you’re more of a full-upper fan, then chances are you might like the Stag 15L M4 Upper.

You’ll find straight off the bat that it has a 16-inch barrel with an optional flash hider to guarantee the recoil is greatly minimized.

You’re not going to notice any muzzle jump at the same moment that will otherwise throw your shot off.

If you want to keep your shots steady and specific, this upper will give you that ability.

This contains a thermoplastic heat shield intended for accelerated dissipation of heat that would also cover the hands from injuries because the barrel is unintentionally hit.

If we think so ourselves, a pretty good feature.

Verdict: 5th Best Left-Handed AR-15 Upper

We get it. The thought of operating with a stripped upper receiver would not thrill everyone.

That’s absolutely okay, we’re not judging at all.

The Stag 15L M4 Upper could be the best thing you’ll ever invest in if you’re searching for a product that contains the parts you need so that you can quickly mount it on your weapon and be ready to go.

Not only can this save you money, but a lot of time attempting to track down the pieces that an AR-15 upper receiver is meant to go with.

Best Stripped Left-Handed AR-15 Upper: A3 Flattop Upper Receiver Assembly 

Best Stripped Left-Handed AR-15 Upper

Pros

  • Great for many optics & sights
  • Sits very tight
  • Good for many accessories

Cons

  • None really

Best Stripped Left-Handed AR-15 Upper

We’ll take a peek at the A3 Flattop Upper Receiver Assembly for our final top-up on the list.

This is a left-handed upper that comes with a rail in the Picatinny type.

With a number of optics or scopes that would better suit this sort of rail, you can configure it to your benefit.

Look no further than this upper receiver if you have a lens or optic that you want to bring to good use that can match Picatinny rails comfortably.

This is built to take into consideration the left-handed AR-15 gunman.

And it’s actually the nearest thing to mil-spec that you can find.

A dust cover and forward aid are both provided, which will increase the overall capacity of the rifle.

As this is a striped cover, the pieces you choose to choose may be picked.

If you’re looking into constructing an AR-15 weapon as opposed to having one that’s completely assembled, it’s probably the safest option.

From here, all you have to do is mount a barrel, gas system, handguard, or rail and you’re going to be in action.

There is nothing more rewarding than bringing together lefties with an AR-15 rifle.

When you bring it together piece by piece, it is also rewarding, understanding that no other manufacturer will make it better than you.

The A3 upper receiver assembly might be just what you would need if you are searching for an upper receiver suited for a left-handed one.

Verdict: Best Stripped Left-Handed AR-15 Upper

A stripped upper receiver is possibly one of the best places to begin your project if you’re more of the builder kind.

Especially if you’re trying to create an AR-15 for left-handed shooters, whether it’s for a gunsmithing user or for yourself.

Any way, to make things much more efficient, you’ll need something that can provide the shooter with customizable choices and still allow them the freedom to include anything else they choose to use.

Cautious considerations prior to buying

You also need to remember any other additional considerations before buying a left-handed AR-15 upper.

All are to be taken strictly and never to be forgotten. Here are a few items to remember while searching for a quality AR-15:

Legal in your legislation?

There are distinct versions of upper receivers, as you may notice.

That’s because in some states (like New York, Illinois, New Jersey, or California, to name a few), they ought to comply with gun regulations.

Before obtaining an AR-15, please review the local and state rules to stay on the safe side.

Not all rules on enforcement are exactly the same and rely on the state itself.

Barrels shorter than 16 inches can be allowed by one state.

A state like New York, meanwhile, may only authorize the use of barrels 16 inches or larger.

The Gas Structures & System

Because of the issues of legality, you are confined to which gas systems you may be utilizing.

Specifically, either rifle gas systems or carbine gas systems would generally be limited to you.

That’s because, whether you have a minimum barrel length or beyond, certain gun laws will allow you to have an AR-15.

The gas device you chose will depend on your personal choice, however it will restrict your choices to either / or.

What Are the Upper Components?

Best Left-Handed AR-15 Upper

It’s crucial to know what’s included in the upper receiver of an AR-15 rifle, regardless of whether you purchase a completely installed upper or create one from scratch.

In an AR-15’s upper receiver, the following are usually found:

Barrel

The barrel is clearly a key component of the upper half of your gun.

This will determine the rifle’s accuracy. The length of the barrel can differ, although they appear to be about 16 inches in length.

An AR-15’s barrel twist rate is normally 1:7.

This barrel twist ratio is suitable for rounds that weigh about 55-grain to around 70-grain.

In making your rifle more precise, it also plays a part.

Rail

Either a rail or a handguard is one of the better aspects of an upper receiver.

There are numerous styles of handguards and rails built for your AR-15 rifle to allow you more versatile choices.

For starters, if you have an optic or scope that is compatible with these kinds of rails, a Picatinny or Weaver rail might be useful.

On your rifle, you can also mount free-floating rails built to give you a better precision boost.

These are both quick to mount and would not take on any sort of experience in gunsmithing.

It only needs the right kind of tools and a minimum of 10 to 15 minutes of your time.

Bolt Carrier Group (BCG)

A section that is required to make the weapon usable is the bolt carrier component or the BCG.

Compared to a car, it is similar to an engine. It’s worthless without it.

That’s what really allows the difference from one that is full of glitches regarding smooth shooting and reloading.

Final Verdict

It doesn’t have to be a challenge to find the right left-handed AR-15 upper.

But if you know just what to check for, you’ll find things a lot harder to look for.

If you’re searching for something completely installed or dismantled, in order for an upper to function correctly, you’ll know just what you need.

Simply find the right pieces and add them to your current rifle or your new construction.

Either way, the AR-15 is a weapon that is very enjoyable to use in target practice and hunting exercises, if you’re a left-handed gunman.

In a home protection case, it may even save your life, as well.

Anyone can manage an AR-15, regardless of what their dominant side is, no matter what.

Test: First impressions of the Zero Compromise Optic ZC527

Zero Compromise Optic ZC527

A few weeks ago we were looking for a long-term tester together with Zero Compromise Optic.

A sports shooter and hunter with long range experience should be the one to test the ZC527 in practice.

Among the numerous applications, we chose Rafael Nehring, who describes his first impressions of the ZCO ZC527 here.

After I was recently selected by mysqltuner.com and Zero Compromise Optic as the long range long-term tester of the Zero Compromise Optic ZC527, today you can read the first of several articles about this quite new target optic from Austria.

A few words about the tester

For more than 25 years I have been shooting with short and long range rifles.

The last seven years mainly in the long range and with stronger calibers like .338 Lapua Magnum, .375 Cheytac or even .50 BMG.

I use the 500 m Rosenberg 1 shooting gallery in Marienberg, Erzgebirge, for weapons and optics development as well as for bullet and laboratory development.

If it is organizationally possible, of course I also do long range shooting outdoors.

Unfortunately, this often requires trips abroad, the shooting range problem especially in the USA is certainly well known to many shooters.

My long-term test of the ZC527 from ZCO

Before the actual shooting we want to have a closer look at the technology of the scope.

The following reports will then deal with the installation of the riflescope in the mount, the adaptation to different weapons and shooting with the new Zero Compromise Optic ZC527.

In addition, I have planned a short excursion into the hunting area.

Finally, we also want to know how the rather tactical and sporty model ZC527 performs in the twilight.

So I am curious myself what this long-term test will reveal to us.

So and now to my first impression of the ZC527

The tension rises when the delivery service rings and hands me the longed-for package with the Zero Compromise Optic ZC527.

I joyfully unpack the well-padded riflescope along with extensive accessories and two manuals in a stylish black cardboard box.

In addition to a padded neoprene sleeve, an eyepiece and objective lens cover in bikini form, an optics cleaning cloth with ZC imprint and a 2 millimeter Allen key for attaching the adjustment turrets are included in the package.

My first impression: “… wow, what a powerful piece.”

I immediately noticed the massive tube body with its 36 millimeter diameter and the fat housing for the reticle adjustment and the turrets.

Especially the relatively flat but large-diameter adjustment towers make a good first impression with their easily readable and clear white lettering.

The same applies to the adjustment of the zoom range, but I will go into the technical details later.

Zero Compromise Optic ZC527

Although the lens has the usual diameter of 56 millimeters, on this riflescope it appears almost unobtrusive.

Due to the center tube diameter of 36 millimeters, the eyepiece housing has a corresponding diameter, which rounds off the whole thing optically.

Despite the large zoom range of 5-27x, the ZC527, at 390 millimeters in length, is more compact than most other comparable riflescopes with a length of up to 420 millimeters and a zoom of only 5-25x.

A number of optical refinements must have been built in for this to work.

The weight of just over 1,000 grams clearly shows that we are dealing with a very stable rifle scope that should also be suitable for all heavy calibers.

The matt black coating of the riflescope also makes a very valuable impression, looks very nice and has a not too strong matt reflection.

For clear identification the Zero Compromise Optic ZC527 has a serial number, which is located at the bottom of the eyepiece body.

Reticle adjustment turrets on the ZC527

The turrets for the reticle adjustment have a large diameter of about 44 millimeters, which in combination with the coarse grooving makes them very easy to grip.

The height of only about 20 millimeters is pleasantly flat.

Both turrets with the division of 0.1 mil per click have a locking mechanism so that they cannot be adjusted by mistake.

The adjustment range here is a gigantic 35 mil in height (35 meters at a distance of 1,000 meters), which makes the heart of every real long-range shooter beat faster.

The reason for this is that with the usual 28 mil of other riflescopes, for example in caliber .375 Cheytac, the adjustment range is usually only just up to about 2,300 meters.

With the huge 35 mil of the ZC527 this would even be possible up to about 2,700 meters.

Zero Compromise Optic ZC527

These values are of course dependent on many other factors such as bullet weight, v0, climate/air density, etc. and should only be taken as an example here.

For even greater distances, the mil classification of the MPCT 3 reticle can be used.

We agree that only a few shooters will use this range of adjustment completely, but you could if you have the possibilities.

Due to the wide range of adjustment, it takes a little more than 2 turns to set the full range of 35 mil and still have a good feel for the detent.

To make sure you always know in which plane you are, a signal pen was installed here.

If it is moved out and black, we are in the 2nd level. If the pen is extended a bit further and shows a white ring, we are in the 3rd level.

Conclusion: No guesswork, but clean and easy to read and thus easily reproducible at any time.

The lateral adjustment range is 20 mil in total (10 mil each to the right/left), which is also significantly more than with other comparable riflescopes.

The first 7 mil (R/L) are directly adjustable and can be read off the scale on the lateral adjustment tower.

If this is really not sufficient, the remaining 3 mil can be used by loosening the two 2 mm Allen screws and repositioning the turret cap.

In this way both turrets can be zeroed. A “Return2Zero” function is also built in, which can be switched off if necessary.

All in all, the same applies to the adjustment range of scopes as for powerful engines: “Displacement can only be replaced by even more displacement”.

Zero Compromise Optic has more than successfully implemented this motto in the ZC527.

Parallax compensation – for the ZC527 from 25 m to ∞

Zero Compromise Optic ZC527

The parallax compensation is located on the left side of the ZC527 in a common tower with the adjustment unit of the illuminated reticle.

The range is adjustable from very close 25 meters to infinity.

This would allow you to shoot your weapon on a very short range with the ZC527 and would guarantee parallax-free shooting.

The approximate distances are indicated on the setting wheel, so that one has a very good orientation.

The actual parallax freedom is, as is well known, at the end of each shooter’s eye, in my case it corresponds pretty much to the inscription.

Adjusting unit for the illuminated reticle with extensive functions

The adjustment unit of the illuminated reticle is continuously adjustable counterclockwise for use with night vision devices and clockwise during daylight.

The compartment for the CR2032 format battery is located under the small cover in the left side tower.

Fortunately, it can be opened and closed without having to hold the adjustment unit at the same time.

The battery compartment also contains the switch for selecting the color of the illuminated reticle and the on/off switch for AIM – Automatic Illumination Management.

This system conserves battery life when not in use by switching off the illuminated reticle if the tilt angle deviates more than 45 degrees laterally and more than 75 degrees horizontally from the horizontal.

A permanent shutdown for longer periods of non-use is of course also provided.

Finally I have the choice, because I find a green illuminated reticle much more comfortable than a red one.

If you don’t like it in green, just stick to the standard in red.

Adjustment unit for the zoom range and diopter compensation with Zero Compromise Optic

The adjustment of the extra large zoom range of 5-27x is done by default at the rotating ring of the eyepiece.

For a better feel in the twilight a grip nose at 15x magnification is additionally attached.

Due to the large ribbing, the overall grip is very good and can be felt and operated safely even when wearing gloves.

Zero Compromise Optic ZC527

To enable the reticle to be adapted to any visual acuity, the eyepiece has a dioptre compensation (-3 to +2) which can be additionally locked by a clamping ring.

In addition, a Tenebraex cover cap can be fitted at the back.

How good is the ZCO manual?

All functions for operation are very well described in this manual in English language and can therefore be used by the shooter without any problems.

For inexperienced users, the procedures for mounting the riflescope and shooting are also well described and illustrated, so that even this should not be a problem.

I have noticed particularly positively that even the torque with which the screws of the riflescope mounting rings may be tightened to the maximum is given.

The value here must not exceed 2.8 Nm or 25 lbs/inch to ensure that the scope is not damaged.

Simply ingenious, there is no better way to provide this to the user.

So much for today’s first impression that the new ZC527 from Zero Compromise Optic has made on me. In short:

I am really enthusiastic and look forward to the next steps of my long-term user test, which will involve installation in the ZF mount and the basic settings on the riflescope.

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