This KWA 2GX Airsoft gearbox is designed as a proprietary gearbox. It can only be used with KWA's. Photos: All photos shown in this listing are taken by Siren , using our own inventory. We don't use any photos we don't take ourselves. Description: The KWA 2GX Version 2 Gearbox is absolutely legendary! KWA has always been known for its high quality merchandise, but this particular gearbox is above and beyond. The 2GX Shell: The gearbox shell is heavily reinforced to withstand years of proper usage. It also features the KWA logo, inscribed on the left panel. The Bearings: The KWA bearings and its respective performance speaks for itself. These are high speed high quality STEEL BASED gems. The Wiring System: Featuring heavy gauge wiring, durable poly-sheathing, and pure brass contacts, the same brass used on the delay coin. Tappet Plate: High grade polymer build with reinforced connection spring Frame Screws: The KWA 2GX ditches the standard flat head/cross screws and opted for the heavier metal star driver screws for added closure endurance Cylinder: The 2GX gearbox features a ported brass cylinder with polymer cylinder head and brass stem. Shipping: FREE PRIORITY SHIPPING