BCM 300 Blackout AR-15 Barrel 12.5″ 1:7 Pistol Length Enhanced Fluted


  • 12.5” 300 BLK chamber with pistol length gas system
  • 1:7 twist rate for stabilizing the heavy .30 caliber bullets
  • Chrome moly vanadium steel with phosphate finish
  • Chrome lined bore and chamber
  • Fluted and tapered profile
  • 5/8×24 threads for your favorite muzzle device
  • Dimpled .750” gas block shelf
  • Carbine buffer with subsonic ammo or H3 buffer with high velocity ammo


Out of stock

Want to be notified when this product is back in stock?

SKUBCM-BRL-12F-300 Category

Note: This barrel does not meet the minimum 16” requirement and is subject to all NFA rules and regulations.

BCM USA’s BCM 300 Blackout Barrel 12.5″ 1:7 Pistol Length Enhanced Fluted is the perfect choice for building a reliable 300 Blackout pistol or SBR. This BCM barrel is designed for optimal performance with the .300 AAC BLK cartridge and features a continuous taper that helps to decrease weight at the muzzle, making your rifle balance extremely well. In addition to the taper, the rear of the barrel is fluted to increase strength and heat dissipation for those long range sessions. With a pistol length gas system and a dimpled .750” gas seat shelf, you can experience the reliability that is known of BCM USA.


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.