.750 Adjustable Gas Block, Set Screw | Nitromet
.750 Adjustable Gas Block, Set Screw | Nitromet, Whether you are looking to upgrade your MSR or starting a fresh build, WMD Guns has the parts to make it happen. This WMD Guns Gas Block, Adj, Low Profile .750", Set Screw, Nitromet(TM) is a low profile gas block which has a .750" inside diameter and is coated with NiB-X inside and out. Packaged with set screws for assembly. Note: Not available for international sales.