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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 jeffry m. Date Added: Saturday 26 November, 2011
Well, this gearbox is awesome. I put it in an M16, without any other upgrades at all. I can't field it. FPS is 505. I thought this was going to get me ~460 fps.

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