Features of v.2 HYBRiD Gearbox: * quick change spring system * spring 110 m/s (370 fps) * polished and buffed surface skeleton of gearbox with corrosion protection * steel gears * 8mm steel ball-bearing * bearing directional piston head * cylinder type 1 with hole * sealed aluminum nozzle * bearing spring guide has 4 locking legs instead of 2 which extra secure spring while shooting * electric blow-back * complete wiring and a trigger
NOTE! Fully Compatible with Airsoft Guns using V.2 Gearbox