BRAND NEW IN BOX HUMM BEFOR YOU BUY Machined aluminum alloy slide w/ injection molded polymer frame provides rugged reliability without sacrificing weight Officially licensed Salient Arms International trademarks the gun over Front and rear combat style sights with integrated forward fiber optic Machined anti-glare slide top, 2011 SAI Grip panels, ambidextrous safety Titanium nitride style SAI barrel and on-frame integrated accessory rail Powered by both Green gas or Co2 magazine by AW Custom / WE Deep engraving with real firearm weapon grade external finish, look, and feel Full auto select fire w/ superior performance, 1:1 scale, and realistic blowback