Odin Works AR-15 Barrel Features The Odin Works Barrel is machined from stainless steel and chambered in 6mm ARC a cartridge built specifically to extend the effective range of the AR-15 platform well beyond what 5.56 typically offers. An 18 inch length combined with a 1 in 7.5 inch twist rate is tuned to stabilize the heavier higher ballistic coefficient bullets that 6mm ARC shooters favor for long range accuracy. Stainless steel construction provides strong corrosion resistance and tends to deliver a very smooth consistent bore finish that benefits accuracy over the life of the barrel. A 5/8x24 threaded muzzle accepts a wide range of muzzle devices or a suppressor for shooters who want reduced recoil or signature. The barrel ships complete with a tunable gas block allowing the gas system to be dialed in for reliable cycling whether running a suppressor or shooting unsuppressed. A rifle length gas tube is included as well giving builders everything needed to complete a gas system without sourcing additional parts separately. That combination of a tunable gas block and matched gas tube takes much of the guesswork out of building a reliable 6mm ARC upper. For AR-15 owners looking to build or upgrade a long range capable rifle the Odin Works Barrel is available for sale at GrabAGun as a complete ready to install barrel package. Odin Works AR-15 Barrel Specifications Manufacturer: Odin Works Model: Barrel Caliber: 6mm ARC Material: Stainless Steel Barrel Length: 18 Twist Rate: 1:7.5 Thread Pattern: 5/8x24 Includes: Tunable Gas Block Rifle Gas Tube Weight: 2.81 oz Available At: GrabAGun