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G&P Complete 400 FPS 8mm Reinforced gear box for M4 M16 Airsoft AEG - Standard Deans / Rear Wiring

3 Customer Reviews

by matthew s. on 02/09/2016
"Got this for my g&g cm16. Dropped right in with a little snug fit. Had to do some wire splicing for the battery. The motor wiring is a little different so if you're doing this for your g&g then you'll also need a better torque motor and I'm investing in a more qualified handgrip too
by Marko V. on 06/24/2014
"This is a pretty good gearbox for the price but there are things that i would change if you are getting it

- The piston head is kinda weak and has a tendency to explode at high fps
- The spring guide doesnt have bearings it only has 2 washers that kinda spin but it is metal
- The Tappet plate and the selector plate are flexible but weak
- The cylinder has no ports so you need a long inner barrel

- The other parts that i didn't list above are very good and very high quality
- Decent shim job
- Deans
- Greased well
- Exelent compression no leaks at all (even though the cylinder head has 1 O-ring)

Overall would recommend
by John N. on 02/24/2014
"Perfect drop-in gearbox! No better company than G&P

Fits perfectly for a custom build with other G&P products
~400 FPS, with little to no deviation between shots.
PERFECT air seal
Wired to Deans
G&P quality gearbox

A Little over-spin with a G&P Satan motor w/ 7.4v LiPo