These kits can be built up using G19 or G23 parts depending on if you want to build a 9MM or a 40S&W. If you want a 9MM you'll need the Compact 9MM frame kit;
https://shopquestar.com/shopping65/s...?id=2931&bc=no
If you want to build a 40 then this kit;
https://shopquestar.com/shopping65/s...?id=2930&bc=no
We don't stock everything but we do offer everything you'll need from barrels to slides to sights.....
Scott