Upper receiver frame for the TK series guns. Includes complete dust cover/ejector cover assembly and forward assist assembly. (Does not include rail, barrel, or barrel...
The KM4 Series complete upper receiver has the forward assist button and ejector port door preassembled, and also comes with the charging handle and mock bolt plate. This piece fits all KM4 Series except for the new KM4 KR series, which means it is compatible with all SR, CQR, and Battle Rifle AEGs, as well as the KM4A1 and the Commando.
Now you can install the KWA RIS rail system on any KWA rifle that accepts standard carbine-length drop-in rails, such as the KM4 Commando, the KM4 CQR Series, the KM4A1, KM4 CQB, and even on the RM4A1 and LM4 or LM4C! This solid metal alloy rail system accepts all standard weaver mount accessories and is made to the absolute highest standards, making your gun accessory ready in seconds!