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KWA M4 Complete Gearbox
[03935]
$175.00
Displaying 1 to 1 (of 1 reviews) Result Pages:  1 
by D. FRIEDMANN Date Added: Wednesday 13 August, 2008
For: KWA M4 Complete Gearbox
Product Information:
Just a tip: all you must do to let it fit in M4 receivers is replace the air nozzle with an M4 air nozzle.
I've had this gearbox for about 5 months and there is no wear on ANYTHING. My first piston stripped on a lipo and I bought a replacement KWA piston and shaved the tooth right next to the initial catch tooth, works flawlessly now. I replaced the piston head with a systema duracon bearing piston head, but that gave terrible compression so I added on a #14 O ring from ACE hardware. (systema uses a slightly small O ring.)
Hope this helps!

NOTE: THE AIR NOZZLE WILL NOT WORK WITH REGULAR M4 HOP UPS, AND NEEDS TO BE REPLACED WITH A STANDARD M4 HOP UP BEFORE USE.

Pros:
Hi torque gears
reinforced gearbox shell
8 and 9mm bushing combo
sector chip
M120 equivalent
polycarbonate piston
metal spring guide
lipo ready
great wiring
decent compression

Cons:
aluminum non ported piston head
need to shave one tooth off the piston before lipo use
the greasing could have been better
Displaying 1 to 1 (of 1 reviews) Result Pages:  1 
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