From Wolverine Airsoft we have the MTW Billet Upper Receiver Kit
The MTW Billet Upper Reciever
Build your own custom MTW Billet GEN3 Upper with this DIY Kit. This is ideal for those wanting to build another complete upper for their Billet MTW to their spec and be able to swap between them with ease for different load outs! Compatible with MTW-Spec HPA Engines, Hop Units and Outer Barrels.
Included Parts:
Billet GEN3 Upper Receiver
Charging Handle
Polymer Dust Cover, Pin, Spring and C-Clip
Standard Contact Yoke (NOT FOR BLINC)
Engine Retention Clip
GEN 3 Feed Tube and Screws for MTW M4
Detent Spring Retention Screw
MTW Billet Outer Barrel Adapter
