Matrix AIM Lipoly Ready 8mm Complete Gearbox for M4 M16 Series Airsoft AEG (M160 Rear Wiring)

Matrix / AIM Lipoly Ready 8mm Complete Gearbox Set for M4 / M16 series Airsoft AEG (Monster Torque) - Wiring to the Back / Stock
*Motor Not Included / Sold Separately. Recommended Matrix Magnum Motor. 

Manufacture: 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.

Specifications:
- Systema / G&P / Classic Army Type 8mm Enhanced "Thick Type" Mecha Box Shell.
- M160 Spring. Velocity out put for this gearbox is around 500~600 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


Review:
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.