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M4 AEG Complete Gearbox w/ Microswitch by ARES / Umarex Elite Force

ID: 58111 (GB-URX-GB)
Elite Force / Umarex859188581111GB-00158111
3.7 stars, based on 3 reviews
M4 AEG Complete Gearbox w/ Microswitch by ARES / Umarex Elite Force
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Elite Force / UmarexARES


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.

About ARES

Established in 2010, ARES has been producing excellent airsoft product, ranging from automatic electric guns (AEG), gas powered guns, spring power guns, grenade launchers, internal & external upgrade part, accessories, and even unique gun rack system. We aim to satisfy both avid airsoft players and gun collectors.ARES airsoft guns and products are distinguishably stand out from other competitors on the market, because of our simple and direct technical innovation which is designed and tested in-house by our R&D team. We hold very a high standard of quality, performance and realism on our airsoft guns and products.

3 Customer Reviews

(Write a review)

by Wesley L. on 10/23/2020
"First off make sure that this will fit with the rear of your receiver. It has an extra bit that sticks out. The front wires are a little on the shorter side, so you may need to extend or add more wiring. With that said this gearbox seems to work just fine. I recorded 350fps with a 120 spring and .2 bbs.
by Jasper B. on 01/25/2018
"Awesome wiring, gearbox itself, qc spring change system, microswitch trigger, and it is honestly a great gearbox. BUT, this thing has absolute trash airseal, replace the whole piston and cylinder assembly out of the box. Also, i tried it in a g&g, jg, g&p and vfc receivers. it only worked in the vfc receiver without modification. idk if it could be fit with modification.
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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