LMT Defense Monolithic 5.56 NATO 11.5" Carbine Length Black Barrel

Duty-Grade Compact Power.
The LMT Defense 11.5" 5.56 NATO Barrel is engineered for serious performance in close-quarters, rapid-deployment platforms. Purpose-built for use with LMT’s Monolithic Rail Platform (MRP®), this barrel offers unmatched durability and modular flexibility for high-speed tactical operations.

Crafted with a chrome-lined bore and chamber, this 11.5-inch 5.56 barrel features a 1:7” right-hand twist rate to stabilize a wide range of bullet weights and improve accuracy in harsh conditions. The carbine-length straight gas tube, combined with a low-profile gas block, ensures optimal cycling and reliability.

Finished with an A2 birdcage flash hider for signature reduction and cryogenically treated for enhanced barrel life, this barrel is ready to meet the demands of law enforcement, military, and high-end civilian builds alike.

Key Features:

• Caliber: 5.56×45 NATO / .223 Rem

• Length: 11.5"

• Twist Rate: 1:7" RH

• Gas System: Carbine-length straight gas tube

• Barrel Type: Chrome lined & cryogenically treated

• Muzzle Device: A2 birdcage flash hider

• Compatibility: LMT Monolithic Rail Platform (MRP®)

Engineered for mission-ready reliability—available now at BattleHawk Armory.