The Odin Works 22 ARC DMR Barrel (brand part number B22ARC212RTG) is a 21-inch 416R stainless steel barrel chambered in the 22 ARC (Advanced Rifle Cartridge), a compact round engineered to bring 22-250-rivaling performance to the AR-15 platform using modern high-BC bullets like the 62-grain ELD-VT. The barrel and chamber were designed in unison to deliver consistent accuracy, strong velocity, and a reliable shooting experience, following the same development approach behind the widely praised 6mm ARC. It ships complete with a tunable .750 gas block and an XL rifle-length gas tube, and Odin Works backs the barrel with a 1 MOA accuracy guarantee.

Key Specifications

• Chambered in 22 ARC, a modern cartridge built around high-BC .224-caliber bullets for long-range performance.
• Barrel length is 21 inches, giving the cartridge room to reach its designed velocity.
• Material is 416R stainless steel, a match-grade barrel steel known for accuracy and corrosion resistance.
• Rifling twist rate is 1:7, matched to stabilize heavier high-BC bullets used in 22 ARC.
• Gas system is XL rifle-length, paired with a .750 tunable gas block included with the barrel.
• Muzzle threading is 1/2-28, ready for a muzzle device or suppressor.
• Backed by a 1 MOA accuracy guarantee from Odin Works.

Frequently Asked Questions

What cartridge is this barrel chambered in? It is chambered in 22 ARC (Advanced Rifle Cartridge).

Does it come with a gas block and tube? Yes, it includes a tunable .750 gas block and an XL rifle-length gas tube.

Is there an accuracy guarantee? Yes, Odin Works backs this barrel with a 1 MOA accuracy guarantee.

Buy the Odin Works 22 ARC DMR Barrel

Bring 22-250-class performance to your AR-15 platform. Shop more Odin Works barrels in our rifle selection, and this barrel ships fast from our Lubbock, Texas gun shop.