Complete Reinforced Gearbox w/ Motor for G36C G36 Series Airsoft AEG by JG / Matrix

4.5 stars, based on 6 reviews


Model: GB-JG-G36COMP

6 Customer Reviews

by Dennis A. on 01/12/2015
"I decided to drop this into my TM G36C just to test. It worked fine, shot at about 373 FPS. Of course I decided to open it up to try and upgrade it. Internals were crap. Spring Guide broke as I was taking it out, way tooo much grease/gunk, and when I put it all back, found out that the alignment of the lower receiver was not aligned for the pin and mag screw. Ended up cracking my lower receiver due to this.

I guess if you never plan on opening it it will work but the question is... for how long? I don't trust the internals what-so-ever. That's what I get for going cheap.
by Gerardo H. on 09/17/2010
"can this gearbox work with a M140 or M150 spring?.......or what is the strongest spring that resists?
by christian g. on 09/20/2009
"I was wondering if this only works in the echo one g36 or if it can shoot with a jg g36 please respond or email me at

Webmaster: It will will work with Echo1/JG no problem.
Complete Reinforced Gearbox w/ Motor for G36C G36 Series Airsoft AEG by JG / Matrix
*JG factory direct gearobx, mech shell in black or silver veries by batch.

Complete Reinforced Gearbox w/ Motor for G36C G36 Series Airsoft AEG by JG / Matrix


  • Motor, motor bracket and everything inside the gearbox included.
  • Full metal reinforced gearbox shell handling up to 550 FPS
  • Stock FPS output is approximately 300~400 FPS
  • Fully upgradable to muzzle velocities of your choice. Note: The higher the FPS, the faster the wear and tear.
For: For experienced players. For Echo1 / JG / Tokyo Marui / Umarex / Classic Army / STAR & Other compatible G36 series AEG. Certain brands modification may be required.

Gear Box Includes:
Cylinder, cylinder head, piston, piston head, plastic bushing, trigger, wiring, switch assembly, tappet plate, selector plate, nozzle, high power spring, spring guide, metal gear box and all the little spring and parts inside a complete gear box.

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, 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. 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

About JG

JG / Jing Gong (China) / ASP (Hong Kong) is among the world's largest Airsoft OEM (Original Equipment Manufacturer) and pioneer for high quality Airsoft AEG rifles. With superb production capability, volume, and their close relationship positioned JG to provide the world market with great reliable products.

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