9 Best 300 Blackout Muzzle Brake Reviews

OUR TOP CHOICE: VG6 Precision AR-15 Gamma 300BLK Muzzle Brake

The company slogan simply asks the question: What recoil?

VG6 Precision, a subsidiary of AR-15 manufacturer Aero Precision, is a California-based company specializing in one thing only: muzzle devices.

Their mission statement is to make the best possible muzzle devices in the industry, and they succeed.

Muzzle brakes (also called compensators) have many useful purposes on centerfire rifles. These devices possess ports and vents designed to redirect the gases produced when a shot is fired. The primary purpose of a brake is to reduce felt recoil and minimize muzzle flip between each shot.

Even in a relatively mild-recoiling cartridge like the .300 AAC Blackout, a muzzle brake can enhance your shooting experience. Less recoil and muzzle rise mean faster follow-up shots. A proper brake should help you stay on target and improve your accuracy. 

Read on to learn about the 9 best .300 Blackout muzzle brakes you can buy today.

Best 300 Blackout Muzzle Brake

Editor’s Choice: VG6 Precision AR-15 Gamma 300BLK Muzzle Brake

The VG6 Precision AR-15 Gamma .300 BLK is, in my opinion, the best muzzle brake for a .300 AAC Blackout rifle. Robust, practical, easy to install, good-looking on any AR-15, and best of all, optimized to provide the best performance with your favorite cartridge.

Top 9 Best 300 Blackout Muzzle Brake Reviews

If you must have only one brake for your .300 Blackout rifles, it’s this one. The VG6 Precision AR-15 Gamma 300BLK muzzle brake is a .30 caliber version of their Gamma 5.56/.223 muzzle brake, explicitly intended for the AR-15 platform.

Although designed for barrel lengths ranging between 10.5” and 18.5”, the Gamma significantly reduces recoil and muzzle brake on any of your .300 Blackout firearms, from pistol-length platforms to 20” barreled precision rifles.

This brake also cleanly redirects the gases at 12, 3, and 9 o’clock, without sending them back in your face. 

The VG6 Gamma has a lightweight construction, emphasizing function over form, and its sleek design complements your rifle’s looks and aesthetics.

VG6 Precision also offers the CAGE, a dedicated attachment you can install on your VG6 Gamma brake, with the specific purpose of reducing concussion (muzzle blast) generated at the sides of the brake. Indoor range shooters will particularly appreciate this device.

Who Should Get This? 

You should get this if you want the best muzzle brake for AR .300 Blackout platforms and other .300 Blackout rifles.

Midwest Industries has long produced quality products for a very fair price. 

The Midwest Industries .30 Cal Muzzle Brake is an all-steel, rock-solid multi-caliber muzzle device, compatible with the vast majority of .30 / 7.62mm caliber cartridges, including 7.62x39mm, which has a real bullet diameter averaging at 0.311”. 

This easy-to-install muzzle brake requires no special tools for installation.

The 2-chamber and porting system will tame your firearm’s recoil, redirecting the muzzle blast to the sides and allowing you to bring your sights back on target more quickly.

Because it is designed to function even with much more powerful .30 caliber ammunition, including .30-06 Springfield or .300 Winchester Magnum, you can feel confident running this brake on your .300 Blackout platform, even with very short barrels and supersonic ammunition. You won’t want to stop shooting once you’ve installed it on your firearm.

Who Should Get This? 

You should get this if you want a quality, affordable muzzle brake for your .300 Blackout firearm and other .30 or 7.62mm caliber platforms.

.300 Blackout firearms are versatile. With a magazine switch and a pull of the charging handle, you can change from light, supersonic rounds to heavy, subsonic, suppressor-friendly ammunition. The SureFire .30 Caliber Muzzle Brake/Suppressor Adapter makes your platform just as versatile.

This muzzle brake is for shooters who can’t decide between running their .300 Blackout rifle suppressed or not. It also allows you to enjoy the many advantages that a muzzle brake offers when shooting unsuppressed.

This precision-machined, DLC-coated muzzle device enhances your rifle with a significant reduction of recoil and muzzle rise, thanks to its offset ports and its dual-chamber system.

This brake also functions as a suppressor adapter for any Fast-Attach .30 caliber SureFire SOCOM Series suppressor, such as the SureFire SOCOM762 RC2.

Additionally, this muzzle brake has pilot holes, which can be used as guides if you intend to permanently pin and weld the brake to your barrel. With an overall length of 2.6”, it is ideal for bringing a mil-spec 14.5” barrel over the legal limit, with no need to file SBR paperwork.

Who Should Get This? 

You should get this if you want a muzzle device that will let you quickly switch between muzzle brake and suppressor within seconds for your .300 Blackout firearm.

Strike Industries is a manufacturer of AR-15, AK, Glock, and shotgun parts. Many of their muzzle devices are famous for their crown-shaped design, with prominent, glass-breaker teeth.

The Strike Industries Cookie Cutter still has the crown shape, but it looks markedly different from other Strike Industries products and any other muzzle device on the market.

Rather than employing a cylindrical shape like a standard muzzle brake, the Cookie Cutter opts for a short and squat design with plenty of surface area for redirecting gases. This compensator fits standard 5/8-24mm threading and is very efficient, significantly reducing felt recoil, even on the shortest barrels.

The design may not appeal to everyone, and it will redirect a lot of noise and blast to the sides, especially when installed on a short barrel. However, it is a practical device that won’t add unnecessary length or weight to your rifle, making it an excellent option for your .300 Blackout AR pistol or SBR.

Who Should Get This? 

Lovers of unconventional designs should get this if you want an effective muzzle brake for reducing recoil on your .300 Blackout firearm without adding superfluous length.  

One of the main advantages shared by both AR pistols and short-barreled rifles is their overall length. Both platform types are short, lightweight, and compact, which provides many benefits in the field.

For the shooter concerned about keeping these platforms short, it doesn’t make sense to install a long and cumbersome muzzle device. Even some muzzle brakes can add too much length. Instead, you should consider the Brownells AR Short Muzzle Brake .30 Caliber for your .300 Blackout AR pistol or SBR

This original item by Brownells is only 1” long, with two rows of evenly-arranged ⅛-inch ports, ensuring uniform recoil and muzzle blast reduction.

Compatible with standard ⅝-24mm threading patterns and made out of ultra-durable tool steel, this short brake has something for every shooter. Don’t pass it over. Despite its size, this brake performs just as well as many other, longer and heavier models.

Who Should Get This? 

You should get this if you need the best muzzle brake for .300 Blackout SBR or pistol platforms, especially if you’re concerned about keeping your firearm’s overall length down.

Yankee Hill Machine is well-known for its lines of pistol and rifle suppressors and their AR-15 firearms and accessories, and its devotion to quality.

The 3085-MBA Slant Muzzle Brake .30 Cal is compatible with most .30 or 7.62mm caliber rifle platforms with a 5/8-24 threading pattern.

This brake possesses a distinctive, slanted design, with two rows of top ports and a large dual-chamber system. It will not only make a statement when threaded onto your barrel but also effectively mitigate recoil and muzzle flip.

This unit is made entirely of heat-treated steel with a Melonite finish, ensuring a long service life and resistance to wear and tear, even after hundreds of magazines.

When used on a .300 Blackout platform, this muzzle brake eliminates nearly all felt recoil, leaving you with a comfortable, flat-shooting firearm that will help you stay on target, no matter how many rounds you fire.

Who Should Get This? 

You should get this if you’re looking for a muzzle brake with a slanted design for your .300 Blackout AR rifle or pistol.

If you possess a .300 Blackout firearm with a 1/2-28 barrel threading pattern, your options for muzzle devices may be more limited. Luckily you have the Gentry Custom Quiet Muzzle Brake .30 Caliber. You’ll be hard-pressed to find a company more dedicated to quality gunsmithing than the Montana-based Gentry Custom, and this dedication shines through this muzzle brake.

Available in polished blued, matte blued, or stainless steel, the Quiet Muzzle Brake features four rows of large ports designed to eliminate as much muzzle blast as possible, evenly and cleanly with no discomfort.

Despite its name, there may not be a muzzle brake that reduces noise. However, the Quiet Muzzle Brake’s porting configuration ensures that it does not significantly increase noise either.

No timing is required to install this brake; simply screw it on your barrel until it meets the shoulder, and you’re ready to go.

Who Should Get This? 

You should get this muzzle brake if you possess a .300 Blackout firearm with a 1/2-28 threading pattern and appreciate a sleek design.

Hawkins Precision is a Colorado-based company specializing in precision rifle components, including scope rings and muzzle brakes.

The Hawkins Precision Tank ST is an innovative muzzle brake for all types of .30 caliber rifles. Manufactured out of sturdy 17-4 stainless steel and finished with Melonite for the utmost durability, this brake is compatible with standard 5/8-24mm threading patterns. It provides substantial recoil reduction on any .30 caliber platform, from .300 AAC Blackout to .300 Winchester Magnum.

The Tank ST’s most innovative feature is the self-timing collar system, which turns it into a self-timing muzzle device. Even if you frequently need to screw it on or off the rifle, the collar keeps the ports aligned in the correct orientation, without the need to find it again manually.

Designed with competition shooters in mind, the four large ports on each side redirect gases and muzzle blast entirely to the sides. This configuration is critical for shooters who are often in the prone position, as it means the rifle’s muzzle report will not kick up dust and potentially disturb their aim.

Who Should Get This? 

You should get this if you want a self-timing muzzle brake for your .300 Blackout rifle or other .30 caliber platforms that provides the highest recoil reduction possible.

SLR Rifleworks mainly manufactures muzzle devices for pistols, AR-15, and AK rifles, as well as AR-15 handguards, gas blocks, and gas tubes.

The Synergy 30 Cal Compensator is part of its successful line of Synergy rifle compensators. Constructed entirely out of 416 stainless steel and finished with Melonite, this compensator can withstand the abuse of constant and sustained fire and still function without issues.

This compensator employs several rows of circular ports along its length, alongside a four-prong flash hider, providing the benefits of both types of muzzle device in a single unit. Felt recoil and muzzle rise are reduced so efficiently, your firearm will recoil almost straight rearwards, which is ideal when you need to stay on target shot after shot.

You will notice barely any muzzle blast while shooting with the Synergy Compensator installed, even on a short-barreled platform. Compared to a standard A2 birdcage flash hider, the difference is night and day.

Who Should Get This? 

You should get this if you need a muzzle device that provides both recoil reduction and effective flash suppression in a single package.

Best 300 Blackout Muzzle Brake Overall

When looking for muzzle brakes for .300 Blackout platforms, you have access to a variety of .30 caliber devices, designed primarily with .308 Winchester in mind. 

Although these multi-caliber brakes are perfectly suitable for your .300 Blackout firearm, nothing beats having a product specifically designed for the cartridge of your choice. 

I can’t recommend the VG6 Precision AR-15 Gamma 300BLK enough. It does everything expected of a quality muzzle brake at a reasonable price point. You will not be disappointed with this muzzle brake. 

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