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Umarex M4 AEG Complete Gearbox w/ Microswitch by ARES

ID: 58111 (GB-URX-GB)
Elite Force / Umarex58111
3.0 stars, based on 1 reviews
Umarex M4 AEG Complete Gearbox w/ Microswitch by ARES
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MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.


  • Quick change spring guide
  • Reinforced design
  • Microswitch trigger improves trigger response
  • Metal alloy construction
  • High grade wiring
  • Wired to the front
Compatibility: Fits in most M4/M16 receivers and other Ver. 2 Airsoft AEGs
Material: Metal Alloy

Manufacturer: Umarex/ARES

About Elite Force / Umarex

Since 1972 Umarex has created a world of adventure for sport shooters, recreational shooters and hunters. Its high-performance, high quality models permit training under highly realistic conditions.

1 Customer Review

(Write a review)

by Tyler P. on 04/06/2016
"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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