Several thousand rounds and it is still the best shooting 45acp I have held. Mine is bone stock. It was the first gun that I bought. At the time, I thought of it as a sort of investment. I wanted something that would last long enough to be able to give to my kids. Now, I'm thinking that I'll hold on to it until I am either dead or unable to shoot. If the wear on the gun now is any indication of its longevity, I shouldn't have to replace anything other than the springs.