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CYMA Complete 8mm Version 2 Gearbox for M4 Series Airsoft AEG (Type: Rear Wired / No Motor)

ID: 30141 (GB-CYMA-MA001A)
MA001 rear no motor
CYMA Complete 8mm Version 2 Gearbox for M4 Series Airsoft AEG (Type: Rear Wired / No Motor)
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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.


  • Wired to the rear
  • 8mm metal bushings
  • Ball bearing metal piston guide
  • Reinforced gearbox shell
  • Low resistance wiring

Manufacturer: CYMA


Connector Type: Small Tamiya
Compatibility: Most Version 2 Airsoft AEGs. Trigger is for an M4 / M16 styled rifle.
Material: Metal alloy, Low resistance wiring

About CYMA

CYMA is among the oldest, most experienced and the largest Airsoft manufacturing facility in the world. Known for their unmatched quality control and professionalism, CYMA is selected to be the OEM of a vast amount of Airsoft products. Durability and performance meets affordability!

24 Customer Reviews

(Write a review)

by Alejandro R. on 03/16/2024
"Great Gearbox!

Put this in my 15yr old KWA SR10 and it works great.

The fit is a bit tight, but it all functions well.

With an 11.1v lipo I am getting around ~30rps.
by John Y. on 05/06/2022
by Richard B. on 03/14/2016
"Got this gear box In today! Pretty solid gearbox. I picked it up for my short m4 so I can use it more on the fields. Seems to hit hard, I would say the fps is around the same as my Kwa sr10 (about 400). That's just judging from the speed of the bbs won't know the true fps till I take it out on the field. Great gear box, the only issue I ran into was it didn't fit in the metal body at first had to do some moding to the body and gear box to get it in. I'll make sure to put my fps reading in on the comment section soon.

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