DESCRIPTION: This is a fully assembled fully functional drop in version 2 JG gearbox. This is an older model gearbox by JG which you can see by the "SB" markings on the gearbox. The gearbox is wired to the rear and has a tamiya connector to it. This is an affordable yet great version 2 gearbox that can be dropped into almost any M4 or other compatible system. ITEM LIFE: This gearbox was found in a boneyard shipment of an old JG M4. It was found to be functional so we have decided to take it out and sell it as a separate unit. The gearbox is of course of an older gun so the internals may look different compared to newer JG gearboxes. PAYMENT DETAILS: All payments are accepted through PayPal and the product is paid for before it is shipped out. Buyer pays for the item plus a shipping fee which is varying on the buyers location. There are no trades on this item. Thanks for reading and message us with any questions! Thankyou! Omega Airsoft Ω