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

4.5 stars, based on 11 reviews

$110.00 $90.20

Model: GB-Monster-160B

11 Customer Reviews

by Noah D. on 05/01/2015
"who ever made this needs a lesson on how gearboxes work,
for all you techs out there you know
this means this gearbox will fail very fast

VERYY strong gearbox shell
good compression
strong gears

no mosfet
bad piston head
teribble contacts
ball bearings
piston stripped
only 480-520 fps depending on your barrel length
(discription says 500-600 fps)
not a great upgrade

matrix internals are like a hit or loose, sometimes there amazing (like this gearbox shell) sometimes they suck....

jut ask a tech to build one for you who has experience and knows how to build high fps setups
by michael l. on 03/26/2015
"incredible gearbox
well I can start off by saying I was very concerned about getting this gearbox mainly because such a heavy spring can do a lot of damage to your gearbox I bought the M 130 about a year and a half ago and it was really good but after all that's just an M 130 but I am insanely impressed with this one it is built so well it's incredibly solid mine was shimmed perfectly and it has an incredible air seal when I first started shooting it it didn't seem that powerful but 30 rounds later I'm blowing through a glass bottle at 40 feet away with a .43 mad bull

just a few things for people to know about this gearbox

people complain because the back wiring is short well with such a heavy spring and having to use a heavy battery you should buy rear wiring that has a fuse

this can use the aim monster torque motor or the Evike monster motor just know the rate of fire isn't going to be all that

with that being said to all the people complaining about the low rate of fire I don't know why you would want to use that on someone because honestly that just makes you the part of the human body that releases fecal matter

it may be somewhat large for some bodies but when you have those kind of parts in your gearbox you're going to be thankful it has that big bulky shell

all in all I give it 10 out of 5 stars matrix outdid themselves once again just keep in mind hardly any field will let this type of gearbox play unless your gun is semi only
by chad D. on 08/27/2012
"ive had this gearbox for about 3 months has held up perfect. i didn't open this up at all. i honestly just "dropped it in" my gun. the gearbox was put into my m16 along with many other upgrades. after complete installation the fps i got was 560~580 and a ROF of 16rps on full auto (11.1v 20c 1600MaH). the gearbox had about 8000 rounds through it so far and yet nothing broke. the matrix m160 gearbox is a great upgrade for any v2 gun. now this gearbox wont work without the following.

HI-torgue motor
or 9.6(not recommended)
mosfet (MUST HAVE!!!)

with my 6.02 tbb and Rhop i get 300+ ft. effective range!!!
P.s. if your buying the matrix magnum motor for this it works great.... except the pinion gear is horrible! i strongly suggest u get another pinion gear because mine lasted about 500 shots i replaced it and its been fine ever since :)

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.

- 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

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.

Wanna chat about Matrix / AIM Lipoly Ready 8mm Complete Gearbox for M4 / M16 Series Airsoft AEG (M160 / Rear Wiring)?

Have questions about this item? We monitor these comments daily, but it may be faster to email us directly or call us at 1-626-286-0360.

Facebook about THIS with your friends! Comment for a chance to win awesome airsoft prizes. Details can be found on The Evike Facebook Fan Page HERE! Remember to leave "Also post on Facebook" checked to qualify your comment!

Items on Sale