Description
> 5.56 NATO chamber > Length: 16.25″ > Heavy Profile for Sustained Fire Use > Thread Pitch: 1/2-28″ TPI > Twist: 1:7 RHT > Mid-Length Gas System > 4 Position Adjustable Regulator > Mag Phosphate Finish > Works with MCR and Shrike 5.56 rifles and upper receiver assemblies. > Made In USA
