ID: 30141 (GB-8mm-M4-B)
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Complete 8mm Ver. 2 Gearbox for M4/M16 Series Airsoft AEG - Rear Wired
- Wired to the rear
- 8mm metal bushings
- Ball bearing metal piston guide
- Reinforced gearbox shell
- Low resistance wiring
- Reinforced JG gearset
- 370~460 estimated FPS
Small Tamiya Compatibility:
Most Version 2 Airsoft AEGs Material:
Metal alloy, Low resistance wiring Manufacturer:
"This is a pretty good gearbox. The parts are decent quality and its is pretty easy to open up and work with. But.. There was almost no air seal in mine so I had to stretch out the O-ring on the piston head. After that, there was a decent air seal with the parts the gearbox came with. Another thing is the spring is pretty strong. After a little bit of messing with air seal its a pretty good gearbox.
"This is a piece of junk. Piston had no seal on on it, dropped FPS. The leads were poop and snapped as I put them onto the motor. Save your money and buy something worth while.
"*Reviewer below me didn't check his compression*
For 50 Dollars here's what you get:
-ported brass cylinder (doesn't need replacing unless you're running a really long barrel)
-1 steel tooth piston (White) + white piston head with compression o-ring (it's alright)
-White cylinder head w/ 1 o-ring (Horrible, replace it)
-Clear nozzle w/ no o-ring (garbage)
-JG 18:1 steel gear set
-Oil retaining bushings
-metal ball bearing spring guide
-Appears to be a Fuse integrated into the wiring
Can't speak about the spring strength and wiring because I replaced them right off the bat.
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