This airsoft pistol is in good used condition. It uses green gas. I have tested it and it works great. Features Include: Lightweight, rugged injection molded polymer frame w/ aluminum alloy slide; Fully licensed by GLOCK w/ complete rollmarks on the slide and logos molded to the frame Ported slide and outer barrel Functional GLOCK trigger safety; Traditional GLOCK sights; GLOCK accessory rail GLOCK Gen3 style frame Slip resistant grip texturing w/ front & backstrap checkering Semi / Full Auto select fire Realistic gas blowback system to simulate slide cycle and recoil Extended GLOCK magazine included I will combine shipping on multiple purchases and I will accept reasonable offers.