Alu Endcap for M4 lube You will need to wire

You will need to wire your own switches

With it's direct solenoid driven nozzle

1 x 4UAD Gear Grease pen

New for the XMOD (as compared to the previus NEXXUS engine) is a nozzle speed adjustment

Maxx hopup chamber: OK

Alu Endcap for M4 lube You will need to wireCNC Aluminium endcap for M4 The Airtac Customs USA CNC Aluminium endcap is specifically designed to fit G&G M4 lower receivers. It replaces the original stock to provide a nice, matching cover for the rear of the lower receiver. The endcap includes a bolt and screw to hold the spring guide inside the gearbox a vital function for AEGs. This endcap is especially good when combined with grip stock bottle HPA builds. Compatibility notes: Will fit most AEG