I have two S&W's with MIM that have very high round counts. My 617 has well over 50k, rounds through it over the past 20 years and she has improved like a fine wine. DA on my 617 is just butter smooth. Its smoother and silkier than my 1979 Python. Yet those internals have a lot of cycles through them and are showing next to no wear. I have a S&W LW Commander with MIM hammer/sear with around 20k rounds on it...humming right along, not showing any signs of getting tired. Both of those guns I have had for just over two decades.

I also have tabs on one 1911 I built with a MIM hammer nearly 30 years now. That was on a stainless series 80 combat commander that has about 70k rounds through it...its one sloppy, loosy-goosy gun, but she still shoots straight, and works every time. Poor gun never deserved that guy, he gives it nothing but abuse.

Last edited by GunGeek; 03/27/24.