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Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 Series Airsoft AEG (M150 / Front Wiring)

ID: 30442 (GB-Monster-150F)
4.4 stars, based on 10 reviews
Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 Series Airsoft AEG (M150 / Front Wiring)
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Matrix / AIM Lipoly Ready 8mm Complete Gearbox Set for M4 / M16 series Airsoft AEG (Monster Torque) - Wiring to the front / hand guard
*Motor Not Included / Sold Separately. Recommended Matrix Magnum Motor.

Manufacturer: Matrix Tactical Systems. OEM: AIM. Matrix is the exclusive US Distributor for AIM Products.
Compatibility: Tokyo Marui, Classic Army, Echo1, JG, G&G, G&P, Echo1, DBOY, SRC, A&K, KWA and compatible models. Modification might be required for certain brands.
Matrix Tactical Systems Gearbox Models : Available in Monster Torque and Tornado High speed. Front wire and rear wire.

- Systema / G&P / Classic Army Type 8mm Enhanced "Thick Type" Mecha Box Shell.
- M150 Spring. Velocity out put for this gearbox is around 480~550 FPS.
- Low Resistance / High Capacity / High conductivity / Wire & switch assembly Set.
- High Grade 8mm Metal Bearing Set Installed. Providing enhanced stability over the 6mm and 7mm gearboxes
- Ball bearing CNC Stainless metal spring guide.
- Matrix Ultra High Performance High Speed Piston with Metal full teeth strip.
- CNC Stainless Steel Cylinder Head.
- Reinforced Silent Polycarbonate Piston Head.
- Steel Gear Set
- Reinforced Nylon Smooth Selector plate and tappet plate.
- Reinforced Ball Bearing Polycarbonate Piston Head.
- Reinforced Matrix Monster (Torque Up) Gear set Installed.

High Powered Complete Gearbox Disclaimer:
This complete gearbox set is a pre-assembled and complete kit for your M4 / M16 series AEG designed for use by experienced players and technicians only. Use of springs higher than M120 rating are intended for extreme, non-warranty upgrades only; component longevity and lifespan is not guaranteed. does not warranty airsoft guns or upgrade parts utilizing a spring rating higher than M120 or equivalent. Additional upgrades or component reinforcement may be required for reliability.

For more information on complete gearboxes, please visit: Complete AEG Gearbox

A good gearbox on par with the KWA M4 gearbox. One advantage of this gearbox over the KWA is that all 6 bearings are standard size 8mm bearings you can buy. Making it much easier to work on. The monster gear set can power up to M170 spring combined with magnum motor. The inner wall of the gearbox is reinforced, just like the Systema new type Mecha box shell, with all the inner walls thickened. Easy installation for most major brands of M4 / M16 series AEG. Great performance.
To install this gearbox on a MOD5 series, although it is a version 2, the nozzle, selector plate and trigger are not the same. Slight work and gearbox knowledge will be required.

California residents click here for Proposition 65 warning

10 Customer Reviews

(Write a review)

by toby t. on 08/13/2016
"i do quite a bit of air smithing. bought this G.B. fer a customer even after the terrible reviews we read together at my consultation with her. got it and was initially impressed. these pre builts are not out of box ready. pros first i suppose. piston is of proper quality. gears are strong robust torque type steel. spring guide is proper stainless and has ball bearings. spring is m150 non linear. cylinder head is stainless 2 o rings and a nice sorbo Aoe was correct, cylinder was stainless no port. wiring harness is thick gauge silver plated wire front mounted of course. gearbox is of proper looking quality same thick type as GnG gearboxes, however those blow up too. so now onto all thing i had to fix=cons reading all the previous reviews before purchase i had a really good idea what to look for. piston head is red aim brand poly with 8 small holes never seen 1 for sale anywhere so i assume its a oem direct install part for aim. dosn't look sturdy enough for a m150. neither do are the ball bearing bushings. piston head was not even tightened onto the piston completely and no loc tite. shimming was so tight prolly would have had to have a devils jet motor to turn them or blow fuses lol. anti reversal latch was too wide or tall for the gearbox so it couldn't reset essentially which would lead to alot of broken stuff. motor leads were too short i had to reroute or flip flop them and could just barely get them on the motor. there was almost no grease on the gears. no silicone oil in the cylinder assembly which is understandable cause over time it dissipates. the air nozzle is red aim poly cheapy. 1 review said it misfeeds maybe their mags suck or maybe their hop up is mal adjusted. get an aluminum 1 from shs or matrix rebrand. as with all M4 V 2 gearboxes take care when installing any motor and setting your motor adjustment. if your not paying attention it will eat your lower wiring assembly. gun chronos at a hot 508 on auto and 503-4 on single shot with .23g has a sexy rof with a large type 9.6 3800 mah battery. its first game is tomorrow hope that piston head lasts lol will post back after 2 games. if you don't know what your doing or don't know a guy like me don't buy this but for the price the parts are well worth it.
by Stephen O. on 07/13/2015
"DO NOT take it apart. All the parts want to shoot out when you try to put it back together and the spring is insanely hard to get in
by Gustavo A. on 01/30/2013
"I just got it today, the international shipping was very slow, almost a month.

the bad things: shiming was horrible, I disarm first and get grind noise from the gears. I shime it propiertly and change the cables for one of a mosfet kit.
to my surprise when I armed in the first shoot get 518 and then keeps in 530 and great roof.

I also buy a policarbonate chamber matrix, the torque up matrix motor, the matrix red bucking, and the grease kit matrix and works great!

I give five stars, but you have to opened first voiding the warranty to reshim if you dont, its probably gonna break!

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