Faxon Duty Series 5.56 NATO AR-15 Barrel - 11.5" - Gunner - Carbine

Intended for compact AR-15 builds, duty carbines, and suppressed configurations, the Faxon Duty Series 5.56 NATO AR-15 Barrel balances reduced front-end weight with carbine-length reliability. This 11.5-inch 5.56 NATO barrel utilizes the Gunner profile, combining a government taper behind the gas block with a streamlined forward section to maintain strength while limiting unnecessary mass. It is well-suited for close-quarters setups and suppressed shooting, featuring a carbine-length gas system with an optimized gas port, 1:8 twist rate for stabilizing a broad range of bullet weights, and 1/2x28 muzzle threads compatible with common muzzle devices and suppressors. The barrel includes a black nitride-treated exterior, M4 barrel extension, .625" gas block journal, and a full shoulder for secure device mounting. It is manufactured in the United States by Faxon Firearms.

Features:

• 5.56 NATO AR-15 barrel
• Barrel length: 11.5"
• Gas system: carbine length
• Barrel profile: Gunner Profile
• Gas block diameter: 6.25"
• Black nitride finish
• Rate of twist: 1:8
• 1/2x28 threaded muzzle
• M4 barrel extension