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Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 series Airsoft AEG ( M130 / Back Wiring)
[GB-Monster-130B]
$110.00 $95.00
by william M. Date Added: Saturday 30 June, 2012
i got this gearbox and i put it in a m16. with the stock hop up it was shooting 430 fps. when i upgraded the hop up to the mad bull ultimite hop up the fps went to 500 with .2s. i use a 11.1v battery and it has some missfeeding. the shim job is bad.

pros
lipo ready
500 Fps with the right hardware

cons
bad shim job
needs a mosfet for lipos.

Rating: 4 of 5 Stars! [4 of 5 Stars!]
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