WMD Guns Low-Profile Gas Block Features The WMD Guns Low-Profile Gas Block is coated inside and out with the company s proprietary NiB-X finish a nickel boron based coating known for reducing friction between moving parts and resisting corrosion better than traditional black phosphate finishes. The .750 inch inside diameter is sized to match a common barrel gas port specification giving builders a straightforward drop-in option for many AR-platform rifles. A low-profile design keeps the block compact under a free-float handguard avoiding interference with rail systems or accessories mounted further down the barrel. This combination of coating and sizing makes the block a dependable choice for a clean reliable gas system build. Set screws are packaged with the gas block for assembly giving builders everything needed to install the part without sourcing additional hardware separately. The nickel finish gives the block a distinctive appearance compared to the black finishes commonly seen on AR gas blocks letting builders customize the look of their rifle. WMD Guns built its reputation on NiB-X coated components and this gas block reflects that same focus on reduced wear and smoother operation over the life of the rifle. Builders assembling a custom upper will find this gas block a reliable foundation for consistent gas system performance. WMD Guns Low-Profile Gas Block Specifications Manufacturer: WMD Guns Model: Low-Profile Gas Block Type: Part Color: Nickel Finish: NiB-X Port Size: .750 Available At: GrabAGun