16" 300 Blackout Upper - CMV Barrel - 15" M-LOK Rail

16" 300 Blackout Upper for AR-15 with Chrome Moly Barrel and 15" M-LOK Rail

The 300 Blackout was engineered to deliver exceptional performance from the AR-15 platform with both subsonic and supersonic ammunition. This versatile 16" upper features a durable chrome moly medium-profile barrel, pistol-length gas system, and lightweight 15" free-float M-LOK handguard for dependable reliability, excellent suppressor compatibility, and outstanding versatility. Whether you're hunting, target shooting, or building an all-purpose rifle, this upper is built to perform.

Quick Glance:

Caliber: 300 Blackout
Platform: AR-15
Barrel Length: 16 inches
Barrel Material: Chrome Moly Steel
Barrel Profile: Medium
Barrel Finish: Parkerized
Twist Rate: 1:8 Twist
Gas System: Pistol Length
Handguard Length: 15 inches
Handguard Type: Lightweight Free-Float M-LOK
Upper Receiver: Forged 7075-T6 Mil-Spec AR-15 Upper
Gas Block: .750" Low Profile Nitride
Muzzle Threads: 5/8x24
Muzzle Device: A2 Flash Hider with Crush Washer
Headspace Checked: Yes – Manson GO and NO-GO Gauges
Assembly: Fully Assembled Upper Receiver Assembly

Full Details:

Upper Receiver:
AR-15 Mil-Spec forged aluminum upper receiver with forward assist and dust cover assembly installed. Forged from durable 7075-T6 aluminum and protected with a matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish. The 7075-T6 construction provides greater strength than commonly used 6061 billet aluminum.

Barrel:
16" 300 Blackout barrel manufactured from durable chrome moly steel with a medium profile, Parkerized finish, and 1:8 twist rate. Features 5/8x24 muzzle threads, a standard AR-15 barrel extension with M4 feed ramps, and is professionally headspaced using Manson GO and NO-GO gauges. The pistol-length gas system provides reliable cycling with both subsonic and supersonic ammunition, making this upper an excellent choice for suppressed and unsuppressed shooting.

Handguard:
Premium lightweight 15" extended rifle-length narrow-profile AR-15 free-float M-LOK handguard. M-LOK slots along the 3, 6, and 9 o'clock positions provide ample space for mounting optics, bipods, lights, grips, sling attachments, and other M-LOK compatible accessories. Machined from 6061 aircraft-grade aluminum and protected with a matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish.

Gas System:
Pistol-length gas system paired with a .750" low-profile gas block featuring a durable nitride finish. The pistol-length configuration is optimized for dependable cycling with the 300 Blackout cartridge across a wide variety of loads.

Muzzle Device:
A2 flash hider installed with a crush washer to help reduce visible muzzle flash while protecting the muzzle threads.

Headspace Checked:
Every barrel is professionally headspaced using Manson GO and NO-GO gauges to help verify proper chamber dimensions and dependable operation.

Ready to Install:
This upper arrives fully assembled and is compatible with all standard Mil-Spec dimension AR-15 lower receivers.

Important:
This product is not a firearm and will be shipped directly to you. No FFL transfer is required.

Ballistic Barn AR-15 uppers are American made and machined by manufacturers specializing in Mil-Spec AR-15 components. Every barrel is professionally headspaced using Manson GO and NO-GO gauges to help ensure dependable function and outstanding accuracy.