• Post category:Bolt Carrier Group
  • Post last modified:September 30, 2022
  • Reading time:23 mins read

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If you’re looking for the best BCG for 300 Blackout, you’ve come to the right place. In this blog post, we’ll be taking a look at some of the top-rated BCGs for 300 Blackout rifles. We’ll also be providing you with some information on what to look for when choosing a BCG for your rifle. So, without further ado, let’s get started!

Best BCG For 300 Blackout

Top 14 BCG For 300 Blackout

#1 ANDERSON MANUFACTURING AR-15 UPPER RECEIVER ASSEMBLY

ANDERSON MANUFACTURING AR-15 UPPER RECEIVER ASSEMBLY

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Specification

Cartridge: 300 AAC Blackout

Finish: Black

Style: Assembled

Length: 16″

Twist: 1-7

The Anderson Manufacturing 300 Blackout Complete Upper Receiver is a great option for those looking to quickly and easily build or change an existing AR-15 to shoot the popular 300 Blackout round. Featuring a 16” barrel with a 1:8 twist rate and Type 3 Hard Anodized – Black finish, the barrel utilizes a carbine length gas system with a .125 gas port and 5/8-24 threads with a 308 A2 Flash Hider. Additionally, the Upper Receiver comes without a bolt carrier group or charging handle, allowing you to select your choice of components to complete the assembly.

Pros:
  • Quick and easy to build out or change existing AR-15 to shoot 300 Blackout
  • 16” barrel with 1-8 twist rate and Type 3 Hard Anodized – Black finish
  • Carbine length gas system with .125 gas port
  • 5/8-24 threads with a 308 A2 Flash Hider
Cons:
  • Does not include BCG or a charging handle

 

#2 2A ARMAMENT – AR-15 BOLT CARRIER GROUP LIGHTWEIGHT ADJUSTABLE

2A ARMAMENT - AR-15 BOLT CARRIER GROUP LIGHTWEIGHT ADJUSTABLE

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Looking to tune your AR-15’s gas system without the need for an adjustable gas block? Then check out the 2A Armament Regulated Bolt Carrier! This lightweight carrier comes with a gas regulating gate built into the carrier itself, allowing you to tune your gas system with ease. The RBC has infinite adjustment from fully open, to fully closed on the regulating gate, and can be tuned to most combinations of buffers, springs, suppressors, and barrel lengths. Plus, the RBC is fully adjustable through the port door and doesn’t require the firearm to be broken down for adjustment.

Pros:
  • Gas regulating gate built into the carrier itself
  • Can be tuned to most combinations of buffers, springs, suppressors, and barrel lengths
  • Fully adjustable through the port door
  • Does not require the firearm to be broken down for adjustment
Cons:
  • It may be too lightweight for some

 

#3 BROWNELLS – AR15 BOLT CARRIER GROUP

BROWNELLS - AR15 BOLT CARRIER GROUP

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Black Nitride

Brownells has just what you need to upgrade or finish your build – the AR-15 Bolt Carrier Group. This ready-to-roll BCG is built for dependable operation in any AR-15 chambered in 5.56 NATO, .223 Remington, or 300 Blackout. The Brownells AR-15 Bolt-Carrier Group features a bolt machined from 9310 tool steel and heat-treated for durability. The carrier is machined from 8620 hardened steel and finished with a nitride coating for smoother operation and increased wear resistance. Every bolt is magnetic-particle inspected and features a torqued-and-staked gas key.

Pros:
  • Heat-treated and shot-peened
  • Finished in a nitride coating
  • Magnetic-particle inspected
  • Torqued and staked gas key
Cons:
  • May not work with full-auto lower receivers

 

#4 RUBBER CITY ARMORY BOLT CARRIER GROUP TITANIUM

RUBBER CITY ARMORY BOLT CARRIER GROUP TITANIUM

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Black

If you need a top-of-the-line bolt carrier group that won’t weigh you down, the Rubber City Armory Titanium Bolt Carrier Group is a faultless choice. This BCG features a titanium carrier and is coated with a proprietary aerospace nitride, making it incredibly durable and wear-resistant. Additionally, the bolt is made from 9310 steel and the gas key is properly staked and torqued, ensuring proper function. At just 7.8 ounces, this BCG is significantly lighter than traditional models, making it ideal for reducing felt recoil. Whether you’re a competitive shooter or simply want the best possible performance from your AR-15, the Rubber City Armory Titanium Bolt Carrier Group is the perfect upgrade.

Pros:
  • Titanium carrier for reduced weight
  • Proprietary aerospace nitride coating for durability
  • Bolt is machined from 9310 steel
  • The billet gas key is properly staked & torqued
  • Tool steel extractor and cam pin
Cons:
  • It may experience over-gassing with increased fire rate
  • Carrier may not be compatible with standard AR-15 or M16 components

 

#5 BROWNELLS SEMI-AUTO CHROME BOLT CARRIER GROUPS

BROWNELLS SEMI-AUTO CHROME BOLT CARRIER GROUPS

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Chrome

The Brownells AR-15 Chrome Bolt Carrier Groups are a great option to finish off your build. Each of these groups features a bolt machined from 9130 tool steel sitting inside of a carrier machined from durable 8620 hardened steel. Both of these essential components, as well as the extractor, gas key, and cam pin, are all plated with chrome to protect against corrosion, as well as offer a slick, low-friction surface for smoother operation and easier cleaning.

Pros:
  • Durable construction
  • Corrosion-resistant chrome plating
  • Smooth operation and easy cleaning
Cons:
  • Not available in all calibers

 

#6 ODIN WORKS INC. BOLT CARRIER GROUP

ODIN WORKS INC. BOLT CARRIER GROUP

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Black Nitride

The Odin Works Inc. Bolt Carrier Group is perfect for those searching to make their ARs run right. This black-nitride finished bolt carrier group is designed for use with traditional AR cartridges that share the 5.56 NATO case head. The bolt-carrier group is treated with a black-nitride finish across all metal surfaces, which provides a low-friction surface that doesn’t require as much lube to run properly as phosphate-coated bolt-carrier groups. This carrier group is a great choice for those who want a durable, reliable, and low-maintenance option for their AR-15.

Pros:
  • Reasonably priced
  • Machined from case-hardened 8620 steel
  • Features proper staking to ensure position and reliability
Cons:
  • It may not work well with dirty ammo

 

#7 BRAVO COMPANY BOLT CARRIER GROUP

BRAVO COMPANY BOLT CARRIER GROUP

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Black

Require a top-quality bolt carrier group for your AR15, M16, or M4? Check out the Bravo Company Bolt Carrier Group. This BCG is fully assembled and features a parkerized exterior and chrome-lined inside carrier. It’s machined to USGI specifications and includes the proper Mil-Spec gas key. The gas key is chrome lined and heat treated per GI specifications, and is secured to the carrier via USGI domestic mfg Grade 8 fasteners. The bolt assembly is machined from the correct Mil-Spec Carpenter No. 158 steel, shot peened for increased strength, and features a tool steel machined extractor and ejector. The BCM Extractor Spring ensures the reliable function of your weapon. Don’t settle for less than the best – get the Bravo Company Bolt Carrier Group!

Pros:
  • Fully assembled
  • Parkerized exterior and chrome-lined inside carrier
  • Tool steel machined extractor and ejector
  • BCM Extractor Spring
Cons:
  • It may be too hard to clean

 

#8 BROWNELLS M16 MIL-SPEC MP BOLT CARRIER GROUP

BROWNELLS M16 MIL-SPEC MP BOLT CARRIER GROUP

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Matte Black, Phosphate

The Brownells M16 Mil-Spec MP Bolt Carrier Group is a fully assembled BCG that includes the bolt, bolt carrier, gas key, firing pin, cam pin, and firing pin retaining pin. Every bolt is magnetic particle inspected (MPI) and machined from Carpenter 158 steel. Following machining, the bolt is heat treated and shot peened. The installed extractor includes a red o-ring with a spring. The M16 Bolt Carrier is machined from 8620 steel and hardened. The interior of the bolt carrier and carrier key is chrome lined on the M16 Phosphate Bolt Carrier Group only. The M16 Bolt Carrier will function in semi-auto or full-auto AR-15/M16 rifles. The gas key screws are properly torqued and staked. The bolt and bolt carrier features a matte black mil-spec finish.

Pros:
  • Heat treated and shot peened
  • The installed extractor includes a red o-ring with a spring
  • M16 Bolt Carrier is machined from 8620 steel and hardened
  • Gas Key Screws are properly torqued and staked
Cons:
  • More expensive than other BCG brands

 

#9 D.S. ARMS – M16 BOLT CARRIER GROUP

D.S. ARMS - M16 BOLT CARRIER GROUP

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Black

The D.S. Arms M16 Bolt Carrier Group is a flawless upgrade for your AR15 or M16 rifle. They took their standard Mil-Spec bolt carrier group and upgraded with real-world no-nonsense features that make sense, not just make it flashy! First and foremost, they looked to their roots in the FAL Battle Rifle and incorporated L1A1 style sand cuts on all of the load-bearing surfaces of the carrier. These sand cuts allow any sand, dirt, or debris that may have gotten into the action to easily be cycled out. DS Arms machines these assemblies using the latest manufacturing techniques, materials, and finishes. The carrier is machined from 7075 T-6 Aluminum and the bolt is MPI 9310 material.

Pros:
  • Machined from 7075 T-6 Aluminum
  • MPI 9310 material
  • L1A1 style sand cuts on all of the load-bearing surfaces
  • Nitride or Nickel Teflon finish
Cons:
  • It may not be compatible with some gas systems
  • Not available in chrome-lined versions

 

#10 D.S. ARMS – M16 BOLT CARRIER GROUP SAND CUT LOW MAS

D.S. ARMS - M16 BOLT CARRIER GROUP SAND CUT LOW MAS

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Specification

Cartridge: 223 Remington, 5.56 mm NATO, 300 AAC Blackout

Finish: Nickel-Teflon

When it comes to M16 bolt carrier groups, DS Arms is at the top of the game. Their ESC – Enhanced Sand Cut complete bolt carrier group is designed for optimal function and durability. They’ve incorporated L1A1 style sand cuts on all load-bearing surfaces of the carrier, so any sand, dirt, or debris that gets into the action can easily be cycled out. Plus, the nickel Teflon finish provides an extra level of protection against corrosion and wear. If you need a top-quality bolt carrier group that will stand up to the most demanding conditions, pay attention to DS Arms.

Pros:
  • Superior quality
  • L1A1 style sand cuts for easy debris cycling
  • Nickel Teflon finish resists corrosion and wear
Cons:
  • May be overkill for less demanding applications

 

#11 Radical Firearms Blackout Upper Assembly

Radical Firearms Blackout Upper Assembly

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Specification

Color: Black
Caliber: .300 AAC Blackout
Barrel Length: 16 in
Gun Model: AR-15

The Radical Firearms 300 AAC Blackout Upper Assembly is an ideal choice for anyone wishing for a top-quality, drop-in receiver that is ready to be mounted on any Mil-Spec AR-15 lower receiver. These AR15 Upper Receivers from Radical Firearms feature a forward assist for increased accuracy and a faster cool-down time. With an ejection port door, the Radical Firearms 16 in. Blackout Upper Assembly easily drops into any firearm without the need of a gunsmith. The Radical Firearms Upper Receiver Assembly is a fully mil-spec compliant receiver that provides a high-quality upper for any level budget or shooter.

Pros:
  • Forward Assist for increased accuracy
  • Faster cool-down time
  • Easily drops into any firearm without the need of a gunsmith
  • Fully mil-spec compliant receiver
Cons:
  • Faster cool-down time may not be necessary for all shooters

 

#12 Aero Precision Complete Upper Receiver

Aero Precision Complete Upper Receiver

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Specification

Caliber: .300 AAC Blackout
Barrel Twist Rate: 1-7
Gun Rail: M-LOK
Gun Model: AR-15

Want to purchase a top-quality complete upper receiver? Note the Aero Precision Complete Upper Receiver – it comes with the Quantum Handguard for superior performance. Key features include built-in anti-rotation tabs, a removable 4-slot Picatinny rail section for the front sight, and a 7 mounting surface for accessories. It’s perfect for your next AR-15 build. Order today!

Pros:
  • Built-in anti-rotation tabs
  • Removable 4-slot Picatinny rail section for the front sight
  • 7 mounting surfaces for accessories
  • Forged from 7075 T6 aluminum
Cons:
  • Does not include BCG or Charging Handle

 

#13 Aero Precision Handguard Complete Upper Receiver

Aero Precision Handguard Complete Upper Receiver

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Specification

Caliber: .300 AAC Blackout
Barrel Length: 16 in
Barrel Twist Rate: 1-7
Gun Rail: M-LOK
Gun Model: AR-15

The Aero Precision M4E1 Threaded 16in .300 Blackout w/ ATLAS S-ONE Handguard Complete Upper Receiver is the perfect addition to your lightweight build. The proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.

Pros:
  • New Picatinny profile blends seamlessly with Enhanced Series Handguards
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Port door and forward assist installed
Cons:
  • May be too lightweight for some
  • Slight rail wobble

 

#14 Aero Precision Blackout Barrel Complete Upper Receiver

Aero Precision Blackout Barrel Complete Upper Receiver

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Specification

Caliber: .300 AAC Blackout
Barrel Length: 16 in
Gun Model: AR-15

Would you like to upgrade to your AR-15? Think about the Aero Precision M4E1! This bad boy is equipped with a CMV medium profile barrel and Gen 2 Enhanced free-float handguards. You’ll love the fit and finish of this upper receiver, and it’s compatible with standard AR15/M4 components. It’s also been MPI and HP tested for your safety. Get more power and accuracy out of your rifle with this sweet upgrade!

Pros:
  • Precision machined to M4E1 specs
  • Comes assembled, with the port door and forward assist installed
  • The handguard mounting platform is forged into the receiver
  • Works with Aero Precision handguards but also fits most BAR-system handguards
Cons:
  • The barrel is not made of stainless steel
  • A handguard mounting platform is forged into the receiver, preventing the use of other handguards

 

FAQ

What BCG does 300 Blackout use?

When it comes to the BCG for your 300 Blackout rifle, there are a few things to consider. The most important thing is compatibility. You want to make sure that the BCG you choose is compatible with your 300 Blackout rifle. Another thing to consider is weight. Some BCGs can be very heavy, which can make your rifle harder to handle. You also want to make sure that the BCG you choose is durable and will last a long time. In the article, there is presented a list of top BCG for 300 Blackout. So learn it and choose which best meets your needs.

Will a 5.56 BCG work with 300 blackouts?

The quick answer is yes, a 5.56 BCG will work with 300 blackouts. However, there are a few things to keep in mind when using a 5.56 BCG with 300 blackout rounds. First, the 5.56 BCG is designed for use with smaller diameter rounds. As such, it may not be as durable as a BCG specifically designed for use with 300 blackout rounds. Second, the 5.56 BCG may not provide as much gas pressure to cycle the action of your firearm as a BCG designed specifically for use with 300 blackout rounds. And third, the 5.56 BCG may not provide as much friction to engage the rifling of your 300 blackout barrel as a BCG designed specifically for use with 300 blackout rounds.

So, while a 5.56 BCG will work with 300 blackouts, it is not the ideal choice and you may want to consider investing in a BCG specifically designed for use with 300 blackout rounds.

What is so special about 300 Blackout?

300 Blackout is a very popular caliber for AR-15 rifles. It is a great choice for both self-defense and hunting applications. The main benefit of 300 Blackout is that it can be fired in both semi-automatic and fully automatic weapons. Additionally, 300 Blackout can be used with a suppressor to reduce the noise signature.

Is 300 AAC and 300 Blackout the same?

300 AAC and 300 Blackout are two different types of ammunition. While they may look the same, they are not interchangeable. 300 AAC is designed for use in AR-15 rifles, while 300 Blackout is designed for use in AR-15 pistols.

Is 300 BLK good for long-range?

300 BLK is a good choice for long-range applications. It is a very accurate and versatile round that is popular among competitive shooters.

What’s more powerful 5.56 or 300 Blackout?

There is no clear winner between 5.56 and 300 Blackout. Both cartridges have their own advantages and disadvantages. 5.56 is generally more accurate, while 300 Blackout has more stopping power. It really depends on what you’re looking for in a cartridge.

 

Conclusion

BCG For 300 Blackout is a great choice for anyone looking to purchase a BCG. BCGs are important parts of any AR-15 build, and choosing the right one can be difficult. We hope that this article has helped you make an informed decision about the best BCG for your needs.

 

Tags: #best bcg for 300 blackout / #best bcg for 300 blackout sbr / #best bcg for 300 blackout suppressed / #best bcg for pistol 300 blackout / #best bcg for subsonic 300 blackout

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