Introducing the Rise Armament Upper Parts Kit, a perfect match for shooting enthusiasts keen on assembling their own upper receiver. This standard seven-piece kit includes essential components like the port door and forward assist, paving the way for a complete upper assembly. Its standout feature is the speed and reliability it brings to upper receiver assembly, reducing installation time and eliminating fitting issues. This is thanks to the quality of the components included in the kit. So, whether you're in the realm of Rifle Parts or Upper Receiver Parts, the Rise Armament kit provides an effective solution to your assembly needs.