Sig Sauer springs and miscellaneous parts let USPSA and IDPA competitors tune pistol reliability, recoil feel, and reset to the stage. Recoil springs in match-specific weights control slide speed with your chosen ammunition, while striker springs, firing pin parts, and small replacement hardware restore factory function after heavy round counts. Options include recoil springs, replacement parts, and tools for the Sig Sauer P320 and P-series pistols, with fitment by model. Fast same-day shipping on most orders at Shooters Connection.