The Poseidon CSI XG8 Gas Blow Back Aluminum Pistol - Green Gas Combo delivers a unique, high-performance sidearm with modern styling and advanced engineering. This OD Green edition features a precision metal slide system and comes standard with an aluminum muzzle protector and steel muzzle adapter (11 mm CW to 14 mm CCW) for accessory compatibility. Poseidon's proprietary internal system offers enhanced durability and performance but is not TM or WE compatible, making it a stand-alone innovation in the GBB pistol market. A patent-pending built-in semi/full auto selector is discreetly hidden inside the slide, allowing players to switch firing modes quickly and seamlessly. The XG8 is also RMR-compatible, making it optics-ready for those seeking faster target acquisition and tactical customization, includes Golden Ball 3000 Round 0.25g ProSlick Seamless BBs, engineered for flawless feeding, superior accuracy, and consistent range across any 6mm-compatible platform. Power is provided by Lancer Tactical 12KG High PSI Green Gas with oil, delivering strong, reliable performance while lubricating and protecting the pistol's internal components. The metal nozzle design prevents leaks and maximizes efficiency, making it the ideal pairing for the XG8's advanced build.