7.5 inch 7.62x39 fully QpQ nitride barrel

7.5 inch 7.62x39 barrel in 1x10 twist in QpQ nitride finish M4 contour 7.5 inches in length Twist Rate: 1:10 pistol gas set up and uses a .750 gas block- not included *Threaded 5/8x24 *M4 *Match grade barrel *4150V barrel material  *Black Nitride QPQ *Button Rifled Black Nitride outside and inside for longer lasting and durablity