making a AEG

[craig]

for the last two weeks if been build a aeg m4 from the ground up that i have called the "APEX M4c1 ive got most of the externals and some of the internals barrels hop up ect but when it come to the gear box i have no experience of whats good and what's perfect for the aeg and that can work with the ultra high speed motor and a m120/130 spring also if anyone has any other suggestions then let me know

 

[bigshep]

Ultra high sped motor and big spring do not mix. If you want big spring (and fps, as a m130 will be about 420 fps) then you need an ultra torque motor not ultra speed.

Apart from that I am f-all help as I like to keep mine as from box until it breaks