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G&P Complete 8mm Reinforced gear box for M4 M16 Airsoft AEG - Tamiya / Rear Wiring

7 Customer Reviews

by Carl S. on 09/30/2015
"This is a very nice and high quality gearbox. I would though recommend re-shimming the gearbox and putting new silicone oil and teflon grease inside it. In my gearbox the bevel gear was not shimmed properly at all. I would also recommend switching the motor connectors to the more universal type motor connectors. It also comes preassembled and is packaged in a box with bubble wrap around it.
by Brandon D. on 06/10/2015
"Awesome gearbox. I already had it for about a year now and it's still going. A must buy..
by John S. on 01/18/2010
"i must say this is a truly fantastic drop in gearbox. now normally i just build my own gearboxes for my guns from scratch but i had an opportunity to get this gearbox for cheap off of a friend who bought it for his ak-47 and let me tell you this is a great quality gearbox especially for the money i use a 25c lipo a turbo motor and a new madbull 110 spring and this is a great gearbox very high quality everything
by chris r. on 02/14/2009
"One of the best gearboxes on the market. i bought one to put in my classic army m4 and its shoots very nice. The gears are high quality and come with a sector cam pre-installed. It also comes with a very nice stainless steel cylinder head and the air nozzle is metal with an o-ring in it for a very good airseal.
by Kim L. on 10/21/2015
"I've had multiple G&P's in the past and they have all been great. This is the standard gearbox for most of them, and there are only two main problems with them; the trigger contacts burn out quickly if you have deans or use semi auto a lot, and they shoot high FPS. The second one is not a problem if you go to a field that is not very strict. My field only allows up to 425 FPS and two of my three working G&P's shoot about 430-450, the last shooting 380 because its old and the O-rings on the piston are probably worn.
Overall great gearbox, but just be ready to replace the wiring harness. Also, note that the motor contacts are strictly for G&P motors on this gearbox.
by Recon E. on 03/18/2015
"Though this is an extremely high quality gearbox in every way, I noticed a few problems. It's fat, so it might not fit in a lower receiver. The fuse wiring is not able to be disconnected so you can't really wire it. The connector itself is a large type. I've never seen a large type battery for an air soft gun
by Bradley L. on 03/15/2016
"1) motor wires are too fat for motor to fit properly
2)trigger contacts stuck after pulling trigger a few times using a 9.6v
3)motor connectors are specific to g&p motors only

Pain in the butt gearbox I wouldn't reccomend unless you are patient and a good airsoft mechanic with lots of time.