ID: 58111 (GB-URX-GB)
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Umarex M4 AEG Complete Gearbox w/ Microswitch by ARES
- Quick change spring guide
- Reinforced design
- Microswitch trigger improves trigger response
- Metal alloy construction
- High grade wiring
- Wired to the front
Fits in most M4/M16 receivers and other Ver. 2 Airsoft AEGsMaterial:
(Write a review)
"OK, so this gearbox will have fitting issues. G&G receivers will not work because of the QC spring design. I have to cut the top of a black ops m4 lower reciever. It also bulges the lower. Next, the airseal is HORRIBLE. I chronoed at 170-210 fps. The internals seem ok, but will need work. I wouldn't buy unless you know how to tech. The micro switch is awesome though, the trigger response is really good.
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