APS - V2 AEG - Complete Gearbox

Features: Fully polished "Silver Edge" gearbox increase 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  Part Number GB-APS-SE2HR Material Metal/Polymer Color Silver Manufacturer APS Compatibility APS non-ambidextrous models   DISCLAIMER: Please use discretion when installing custom parts as fit and compatibility may vary. Some modification may be required. Professional installation recommended.