Tapco Ejection Port Door Cover Kit AR-15 Black Aluminum. 223/5.56 models. Say goodbye to the hassle of a C-clipthis kit features an innovative knurled rod ensuring a secure fit and streamlining assembly. Crafted for durability the TAPCO ejection port door cover is built to withstand rigorous use making it a great choice for tactical and everyday AR-15 enthusiasts alike. Simplify your setup and enjoy enhanced reliability with this essential upgrade. Specifications for Tapco TAP22097 Ejection Port Door Cover Kit AR-15 Black Aluminum: Manufacturer: Tapco Fabric/Material: Aluminum Tapco TAP22097 Ejection Port Door Cover Kit AR-15 Black Aluminum