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Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 series Airsoft AEG ( M120 / Front Wiring)
by Thomas F. Date Added: February 22, 2009
this gearbox looks amazing. i love how its black instead of the silver that comes in most echo1.

does anyone know if this gearbox has a pre-installed m120 spring?

WEBMASTER: It is an M120 gearbox, thus an M120 spring is installed.

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