JG / CYMA 8mm Reinforced Gearbox for M4 M16 Series Airsoft AEG with Mosfet - Rear Wired

$70.00 $60.20

Model: GB-M4-MOS8mm-B
Location: U11-109

6 Customer Reviews

by Brad B. on 10/08/2013
"Some of the below review seem outdated mentioning what seem to be JG's older gearbox from 2010. I am sure evike gets these from JG with their orders of guns and these are the gearbox found inside a JG or Echo1 M4 carbine. It has 8mm bushing, my selector plate is black instead of yellow like the image and the mosfet has a nice hard casing to protect it from accidentals.

415 FPS out of the box on my new custom M4 running a stock JG 363mm barrel.

Over all, the item work as expected. Good strong parts and gearbox.

Great deal with a nice mosfet.
by jerry W. on 11/08/2012
"I dropped this gearbox in my jg m4,with a 9.6 battery,it punched half way through a boiling pot!!
Very good gearbox,i will be ordering another.
by Joel H. on 10/01/2012
"Amazing gearbox! Popped it into my wounded JG M16A4 and it has brought the gun back to life! The rate of fire is almost doubled compared to the original JG gearbox and sometimes it shoots so fast that the mag can't load a bb in time!!! (Which may sound bad but with a spring low-cap mag it would work just perfectly. It makes me happy though!) Anyway the only con is that the battery connector is mini-type and did not fit the battery I had so BEWARE! It was an easy fix by just soldering the old connector to the new wires. It's like putting an M16 into the Pack-A-Punch machine, it really strikes some fear into those radical Muslims!

JG / CYMA 8mm Reinforced Gearbox for M4 M16 Series Airsoft AEG with Mosfet - Rear Wired
The JG Mosfet Enhanced 8mm Gearbox is a high performance and high quality release from JG / CYMA which has been proven by their release in the popular rifles. Need to replace your gearbox or just looking for something new to upgrade your old AEG? Look no further than the JG 8mm Gearbox.

- Velocity output for this gearbox is estimated to 370~460 fps.
- Wiring to the back. Includes High Performance Mosfet Unit.
- 8mm Metal Bearings.
- Ball bearing metal spring guide.
- Reinforced Piston / Piston Head.
- Reinforced JG Gear set.
- Reinforced Cylinder and Cylinder Head.
- Low Resistance wiring harness set. (May come in clear or black/red wiring wrap.)
- Reinforced Mech Box Shell.

Complete Gearbox Disclaimer:
We have compiled a series of videos for AEG take down, assembly and gearbox for your reference. Recommended for experienced players only. A "gearbox" virtually never breaks, Evike.com offers spare parts for all components. All gearboxes are sold as complete set of parts and "AS IS". All the gearbox are directly from manufacture. Buyer responsible for fine tuning and proper installation. Evike.com is not responsible for shimming it perfectly or playing the game of airsoft for you.
For more information on complete gearboxes, please visit: Complete AEG Gearbox

This product was added to our catalog on Tuesday 09 November, 2010.

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