The Odin Works 9mm 10.5-inch Pistol Barrel (brand part no. B9MM10) is a medium-profile barrel built specifically for blowback-operated AR9 pistols, not a direct-impingement gas system. At 10.5 inches with a 1:10-inch twist, it stabilizes standard 9mm bullet weights, and the threaded 1/2-28 muzzle is ready for a compensator or suppressor. Odin finishes it in stainless steel and machines it to work with either Colt-pattern or Glock-pattern magazine-fed lowers, giving builders flexibility in how they configure their 9mm AR pistol.

Key Specifications

• Chambered in 9mm Luger.
• Measures 10.5 inches in barrel length.
• Medium profile, purpose-built for blowback-operated AR9 pistols.
• Rifled with a 1:10-inch twist rate, matched to standard 9mm bullet weights.
• Works with either Colt-pattern or Glock-pattern lowers.
• Threaded 1/2-28 muzzle, ready for a compensator or suppressor.
• Finished in stainless steel.
• Ships with no sights installed.

Frequently Asked Questions

Does this barrel work with a direct-impingement 9mm build? No, it is built specifically for blowback-operated AR9 pistols.

Will this fit a Glock-pattern lower? Yes, it is machined to work with either Colt-pattern or Glock-pattern lowers.

Buy the Odin Works 9mm 10.5-inch Blowback Barrel

Blowback 9mm builds need a barrel matched to that operating system, and Odin cut this one specifically for it rather than adapting a rifle-caliber design. Browse more AR barrels from Odin Works and order it from our Lubbock, Texas gun shop as soon as it’s ready to ship.