The A3 Upper Receiver Parts Kit for AR-15 includes the ejection port cover, ejection port rod, ejection port C-clip, ejection port spring, forward assist button, forward assist spring and forward assist pin.Specifications and Features:Luth-AR is the name to trust when it comes to purchasing high quality parts and accessories for your AR platform firearms. Using high quality parts is the best way to reduce frustration when trying to build your AR style rifles.