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Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 series Airsoft AEG ( M120 / Back Wiring)
[GB-Monster-120B]
$110.00
by spencer a. Date Added: Thursday 16 April, 2009
Very good gear box. Really powerful. I had to file down around the mouth of my hop up to get it to fit right around the nozzle. It wouldn't shoot unless i did so. This gear box is great though.

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