MK12 Stainless Steel Rifle Length Gas System Features

The Bravo Company BCM Mk12 18″ Stainless Steel Barrel kit enables you to upgrade your AR-15 with the same barrel BCM puts on their Precision rifles. The barrel comes ready to install on your rifle, with BCM low-profile gas block and a gas tube. Bravo Company’s BCM Mk12 18″ Stainless Steel Barrel comes with a 5.56 NATO match (USMC SAM-R) chamber and hand-lapped 1-8″ button rifling for superb accuracy potential. M4-type feed ramps ensure the rounds make their way into that chamber consistently and reliably.

MK12 Stainless Steel Rifle Length Gas System Specifications

• Phosphate finished mil-spec low profile gas block
• Rifle-length gas system for gentler, reliable cycling
• 18″ length gives a balance of compactness and additional velocity for improved long-range performance
• .750″ O.D. at gas port
• Barrel extension included & installed
• 1/2″-28 tpi muzzle threads (muzzle device not included)
• Contour: M4
• Finish: Silver
• Gas System Length: Rifle
• Length: 18″
• Make: AR-15
• Muzzle Threads: 1/2-28
• Twist: 1-8
• Cartridge: 5.56 mm NATO