WMD Guns Ejection Port Cover Assembly .308 NiB-X Silver. 308 NiB-X. Developed working with some of the most extremely strong and dependable materials available these AR15 Upper Parts via WMD Guns can provide a product that gives you many years of consistency. WMD Guns has been generating superior quality products for a number of years and the WMD Guns Ejection Port Cover Assembly .308 NiB-X is their manner of revealing just how much they care. Right here at OpticsPlanet we make it our responsibility to get the most suitable product for all your needs and presenting the WMD Guns Ejection Port Cover Assembly .308 NiB-X is something that we're pleased to offer. Specifications for WMD Guns Ejection Port Cover Assembly .308 NiB-X: Manufacturer: WMD Guns Color: Silver Finish: NiB-X Caliber: .308 Winchester Package Contents: WMD Guns Ejection Port Cover Assembly .308 NiB-X WMD Guns 1-NIBXEPCA308: Ejection Port Cover Assembly .308 NiB-X Silver