One Horse AR-15 Barrel Features The One Horse AR-15 Barrel measures 10.5 inches and runs a carbine length gas system which keeps the action cycling reliably while managing recoil in a compact platform. Its 1:7 twist rate stabilizes a broad range of 5.56mm NATO bullet weights giving the shooter flexibility in ammunition choice from lighter varmint loads to heavier match bullets. Built from 4150 steel the barrel is machined to handle the heat and pressure of sustained firing without losing accuracy over time. A medium profile keeps the barrel strong while avoiding the added weight of a heavier contour making it well suited to a compact carbine build. A 1/2x28 muzzle thread allows the shooter to install a compensator flash hider or suppressor mount of their choice. The barrel s nitride finish adds a hard corrosion resistant surface that stands up to field use and repeated cleaning. This durable black finish also helps the barrel resist wear in demanding environments where a standard finish might degrade faster. Shooters building a short barreled rifle a compact home defense carbine or a tight quarters AR-15 will find this 10.5 inch barrel a dependable foundation for the build. One Horse AR-15 Barrel Specifications Manufacturer: One Horse Model: AR-15 Barrel Caliber: 5.56mm NATO Barrel Length: 10.5 Twist Rate: 1:7 Gas System: Carbine Barrel Profile: Medium Material: 4150 Steel Color: Black Muzzle Thread: 1/2x28 Available At: GrabAGun