The ZEV Technologies O.Z-9 and its compact variant, the O.Z-9c (OZ9C), represent the evolution of ZEV Technologies from an aftermarket Glock parts maker into a complete firearms manufacturer. ZEV Technologies began as a custom Glock tuning shop and parts maker (focusing on triggers, slides, and barrels) that catered heavily to competitive shooters. Threaded barrel, optic ready... This gun as you can see in photos was left in the case wet and the bluing has worn off. We've priced this item accordingly as it's still in excellent condition i personally would have it cerakote job done on it. This also comes with 3-15 round mags