ODIN Works AR-15 22 ARC 18in Threaded Barrel Rifle Gas System 1/2-28 Threads 1-7 Twist 416 Stainless Steel DMR Profile with .750 Tuneable Gas Block. The 22 ARC (Advanced Rifle Cartridge) brings exceptional power and performance elegantly packed into a compact cartridge that fits into your AR-15 but is equally at home in a bolt action. By utilizing the new 62 gr. ELD-VT bullet the 22 ARC brings extraordinary performance that rivals the 22-250 to the AR-15 platform. The 22 ARC was engineered to use modern high-BC bullets. Designing the cartridge and chamber in unison provides consistent accuracy great velocity spreads and an outstanding shooting experience. This cartridge is the result of careful and meticulous design following the same proven methodology as the highly acclaimed 6mm ARC. Specifications for ODIN Works AR-15 22 ARC 18in Threaded Barrel: Manufacturer: ODIN Works Color: Stainless Steel Fabric/Material: 416 Stainless Steel Caliber: .22 ARC (Advanced Rifle Cartridge) Barrel Length: 18 in Gas System Length: Rifle Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 1/2x28 Barrel Twist Rate: 1-7 Gun Make: AR Platform Gun Model: AR-15 Package Contents: ODIN Works AR-15 22 ARC 18in Threaded Barrel What firearm models does the manufacturer say ODIN Works AR-15 22 ARC 18in Threaded Barrel is compatible with? The manufacturer says that ODIN Works AR-15 22 ARC 18in Threaded Barrel is compatible with AR-15ODIN Works B-22ARC-18-R-TG: AR-15 22 ARC 18in Threaded Barrel Rifle Gas System 1/2-28 Threads 1-7 Twist 416 Stainless Steel DMR Profile with .750 Tuneable Gas Block Stainless Steel