One Horse Pistol Gas Barrel Features The One Horse pistol gas barrel is chambered for .300 AAC Blackout with a 1:7 twist rate a rate fast enough to stabilize heavier subsonic bullets as well as lighter supersonic loads. That dual capability gives shooters flexibility to run suppressed subsonic ammunition or standard supersonic loads from the same barrel. The pistol length gas system is tuned to cycle reliably in a short 10.5 inch barrel while helping reduce felt recoil compared to a shorter gas system. A medium barrel profile balances weight and rigidity for a build intended for a compact AR15 pistol or SBR. Machined from 4150 steel the barrel offers the strength and heat resistance needed for repeated firing strings. A premium nitride finish covers the barrel improving corrosion resistance and making cleaning easier after range sessions. Threaded 5/8x24 the muzzle accepts a wide range of compensators flash hiders or suppressors sized for .300 AAC Blackout. Built to mil spec standards this barrel gives builders a dependable foundation for a high performance suppressor ready .300 AAC Blackout pistol or SBR. One Horse Pistol Gas Barrel Specifications Manufacturer: One Horse Model: Pistol Gas Barrel Caliber: .300 AAC Blackout Barrel Length: 10.5 Barrel Twist: 1:7 Barrel Profile: Medium Barrel Material: 4150 Steel Gas System: Pistol Length Color: Black Muzzle Thread: 5/8x24 Available At: GrabAGun