Hello everey one i need a big help

Im new in airsoft. I have one M4 and i want to do samething nice to the gun.
I now that is better to buy a new one, but i realy love play with it.

This is what im thinking to do

CNC Aluminum Cylinder Head, Aluminum Cylinder, Polycarb Piston w/ Metal Teeth, Aluminum Piston Head, 18:1 Steel Gears, M120 Spring, Aluminum Air Nozzle, Aluminum Bearing Spring Guide

G&P Complete Metal Hopup + Inner Barrel Set for M4 M16 Series Airsoft AEG (300mm)

High Torque Performance Airsoft AEG Motor - Long

Its this ok or I need to do outher things ???

Thanks for your time

Throw a Mosfet, some 16AWG wire and an 11.1V LiPo with T-Plugs in there and you have the perfect gun.

Thanks a lot for the help

Do you now any machanic that assemble this components in my gun???

thanks

There's only a hand full of airsoft mechanics in Switzerland, so most likely you will have to install them yourself. Or you could try to find someone in this forum who does custom builds for other people.