Brownells Military Barrels AR-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly
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Overview
The Brownells Military Barrels AR-15 12.7" A1 Carbine Barrel is designed for 5.56 NATO caliber builds, featuring a lightweight profile that enhances maneuverability without sacrificing performance. With a 1:12 twist rate, this barrel is optimized for stabilizing lighter projectiles, making it suitable for a variety of shooting applications. Commonly seen in compact and tactical builds, this barrel's carbine-length gas system and .625 gas block diameter ensure reliable cycling and reduced recoil.
Specifications
Brownells Military Barrels AR-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly
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Build history on GunPartPicker
Builders on GunPartPicker first added the Brownells Military Barrels AR-15 12.7" A1 Carbine Barrel 1-12 Twist Assembly to a build in April 2026.
It was out of stock everywhere we track for all of September 2026, and today the one retailer we track is out of stock. Listed prices start at $249.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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