G&P MWS Forged Aluminum M4 Upper Receiver w/ Hopup Chamber (Cerakote Black Finish) for Marui M4A1 MWS GBB Net-Weight-(g)_1250 Tokyo Marui USP Silver Slide

Tokyo Marui USP Silver Slide AEP (Fixed Slide)

Airsoft enthusiasts can expect to launch from the drop free magazine 19 rounds

Suitable for AEG Rifle

CNC machined metal keymod rail

As a Co2 Pistol with fully automatic function is barely seen in the market

G&P MWS Forged Aluminum M4 Upper Receiver w/ Hopup Chamber (Cerakote Black Finish) for Marui M4A1 MWS GBB Net-Weight-(g)_1250 Tokyo Marui USP Silver SlideG&P MWS Forged Aluminum M4 Upper Receiver w Hopup Chamber (Cerakote Black Finish) for Marui M4A1 MWS GBB Aluminum Construction (Black Cerakote finish) Cerakote finish For better resistance to the elements and or potentially corrosive chemicals. Design For Upgrade the Original Parts More Durable Comes with a hop up chamber to further maximize the performance of the rifle Suitable For Tokyo Marui M4A1 MWS Series Airsoft Gas Blow Back GBB Rifle