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

$110.00 $90.20

Model: GB-Monster-160B

10 Customer Reviews

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 :)
by Sam n. on 01/02/2012
"I've probably put about 300rds full auto and about 190rds on semi through my m4 with 509mm 6.01 barrel, and I have to say it feels like its just getting better the more rounds i put through it. Great gearbox so far. I need to chrono it still, but for reference, i've seen the bb travel atleast 200 ft(.20) before losing it, however the flight pattern was gnarley. At 50 ft It shot through cardboard into a wood door and shattered bbs to peices. The trigger response is surprisingly efficient, smooth, and instantaneous, however if your hopup/bucking is not the right type some trigger/operation issues will occur. The thing sounds like a monster and will easily let people know you are there, but does make an awesome sound I must say. The Matrix magnum motor did not mesh with the gears so I purchased an echo 1 that seems to have given me quite the RPS and overall power I was looking for using a 9.6v. Overall A great gearbox at a great price. Looks and feels great, has been reliable so far and feels like it will continue to do so.

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.

For Experienced players only. This complete gearbox set is essentially a pre-assembled complete reinforced / tune up kit for your M4 / M16 series AEG. Manufactured by Matrix Tactical Systems, one of the most established, reliable and well known Airsoft manufacture in the world. This gearbox is an affordable alternative over the Systema gearbox with 8mm bearing sets. The Mecha box shell is modeled after Systema's new gearbox design with thickened shell. With the more stabilized 8mm bearing set, this gearbox is more attractive than ever!

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.

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, 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

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.

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