I have a Zev factory built Glock 19 turning it into their Spartan model. Everything is Zev that can be Zev....slide, barrel, trigger, magwell, compensator, etc. Comes with the factory Zev SKB hardcase. I bought this a couple years ago from a dealer. It was a new, never fired outside of factory, and it's still that way. Regrettably I've actually never fired it, which is why I need to sell it. No sense in just keeping it around as a safe queen. Let me know if you have any questions. Thanks!