Cobalt Kinetics Gas Block Features The Cobalt Kinetics Gas Block is machined from steel to the same exacting standards used on Cobalt Kinetics own line of complete rifles. Built as a non adjustable design it is intended for rifle length gas systems where consistent repeatable function is the priority over user tunability. The .750 inch diameter is sized to fit standard rifle barrel profiles allowing for a precise snug fit that minimizes gas leakage and keeps the action cycling reliably. This kind of fit and finish is typically reserved for factory built rifles making this gas block a notable upgrade for a personal build. Finished in black nitride the gas block resists corrosion and wear far better than a bare or untreated steel part extending its service life under repeated firing. Originally produced exclusively for Cobalt Kinetics line of rifles the gas block is now offered separately to the aspiring personal builder who wants the same component quality in their own project. Because it shares the same materials and finish as Cobalt Kinetics factory rifles builders can expect the same level of durability and reliable cycling performance. The Cobalt Kinetics Gas Block is a straightforward dependable upgrade available at GrabAGun for any rifle length AR build. Cobalt Kinetics Gas Block Specifications Manufacturer: Cobalt Kinetics Model: Gas Block Material: Steel Firearm Type: Rifle Finish: Black Nitride Diameter: .750 Available At: GrabAGun