it's a completely different gun in terms of frame and slide. i found it to be bigger than a regular CZ, but I made slim grips for it. other than that, it's a lot ligther since it's frame is alloy, not steel, and it's very shootable. i spent my first two years shooting uspsa with it and got a boatload of rounds through it. good gun, just a departure from the rest of the steel framed CZs.