The Brownells 10mm auto AR-15 barrel is a Game Changer for enthusiasts of the robust 10mm cartridge, offering the opportunity to craft an AR-style carbine or pistol that harnesses the power of this favored pistol round. Expertly machined from triple stress-relieved 4150 steel, this barrel is fortified with a nitride coating, enhancing its durability and longevity. Designed with precision, it features 360 degree feed ramps and a meticulously hand-polished chamber, ensuring smooth and reliable extraction every time. This barrel not only elevates the performance of your firearm but also expands the versatility of the 10mm cartridge, making it an essential upgrade for any serious shooter.

Feature - 1:16 twist rate
Compatible with any Blowback .40 S&W bolt carrier group
Equipped with an 11 degree target crown
Features a threaded muzzle with a 5/8-24 TPI thread pitch

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