I replace the hammer, firing pin, and recoil springs on my Tanfoglio Limited right around the 15k mark. I have approximately 40k through mine so far and had to replace my sear and hammer due to hammer follow at 30k. Other than that, that's it. You may want to take into consideration on how "hot" your loads are. Mine are on the softer side since I only shoot reloads. I'm sure someone will be here shortly to chime in. Sent from my iPhone using Tapatalk