G&p SALIENT ARMS metal body pro kit for m4 electric gun (Grey) (I5 gearbox)

New custom assembled set ready to use!!
the best G&P technology and external quality for m4 airsoft

full metal SALIENT ARMS main body with:
Strike custom grip with m140 motor installed
polymer selector lever
carrying handle with SIA port cover and dust cover
steel bolt catch
integrated trigger guard
SAI forward assist knob
 
I5 latest 8mm ball bearing gear box installed:
m120 tempered steel spring
QD spring ball bearing spring guide
polyacetal/steel piston and piston head
CNC aluminum cylinder head and seal nozzle
CNC steel gears with enlarged cam
V.2 electronic mosfet with silicone wire and swich assembled T connector (rear wiring)

full size cylinder ideal for m4/m16 inner barrel!