The first AEG from G&G Armament with the G3 Split Gearbox, the G&G SGR556 S-AEG gets the full scrutiny of REAPERs Airsoft. With an M-LOK slide, a full metal stock made by CNC machining, and a GOS-V8 stock that can fit a large battery, the rifle is a powerful and versatile weapon. The SGR 556 also features the G3 gearbox, the latest innovation from G&G, which allows easy spring and MOSFET module changes. The hop-up chamber has a unique design that cuts the power when the magazine is empty and works with most M4 magazines. It has a screw on the throttle block for adjustment and it connects to the top of the gearbox to enhance compression.