P250, P320, & P320 X-5 Pistols
I completed the Sig Sauer P320 Armorer's Class 11/18/15. Here are the Sig Sauer specs from the factory manual on that date.
Detailed disassembly and inspection by a trained armorer = every 3 years or 5,000 rounds.
Recoil Spring for P320 full size = 10,000 rounds.
Compact & Subcompact Recoil...