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Home » Accessories & Parts » Internal Parts » Gearbox » M4 / M16 Series » Reviews
z Matrix Custom Complete Lipo Ready 9mm Gearbox for M4 M16 Series Airsoft AEG
by David D. Date Added: October 29, 2011
well worth the money, installed it in my jg and it greatly improved rps, fps, and accuracy significantly. just understand the description well it states that this is a comlpete set of parts and you will need to shim it . and thats true, order shims with it . I cracked mine open and was in need of some serious shimming. but the quality of parts inside is excellent. i use a jg double eagle high power motor and it works awesome. buy it don't even think twice, you won't regret it.

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