I had one of the early PM45s, and it gave me nothing but trouble. Went back to the factory THREE times with no improvement in functionality. On the fourth time, I told them I did not want this gun back, or a replacement PM45. Kahr did right by me, however; they let me pick any gun I wanted from their lineup, and I chose a black stainless (all steel) K9 with night sights. Works great, and I never really liked polymer frame guns anyway. I prefer any caliber that begins with a 4 over anything that begins with a 3 or 9, but the K9 will shoot as hot a load as I want to feed it.