Features :
 
Fully polished "Silver Edge" gearbox increasea overall efficiency by up to 15% from standard gearbox designs .
Made from high strength zinc alloy; reinforced in key areas for longevity .
8mm stainless steel bearings provide smooth travel for the steel gear set .
Ported cylinder optimized for carbine length inner barrels (~363mm) .
Integrated "quick spring release" function for easy spring change .
"Hybrid" electric blowback design (can be disabled simply by changing the mock bolt) .
Wired to the rear with a Small Tamiya plug .
 
 
Compatibility : For APS ambidextrous M4 platforms (May work with other brand TM-spec M4 AEG rifles, but will require modification) .
Gearbox Type: Ver 2, Full Metal .
Motor: Long Type (Not included) .