I bought the Sig P226 Classic .22 (not to be confused with the mosquito) and then the Two step Caliber X-Change 9mm conversion kit shortly after. Total price comes to about $1100 tax and delivery in. I read a lot about this gun before buying and determined everything is the same between the classic .22 and any other caliber 226 except the slide/barrel assembly (obviously) and the magazines. You end up with a dual caliber gun for the same price as most stores sell the 9mm for. The .22 has functioned flawlessly on mini-mags and the 9 eats anything. Accurate, reliable, comfortable and easy to clean and disassemble. I love mine.