Smith & Wesson M&P 40 Shield Recoil Spring Assembly .40S&W Used 40S9 Model 43 Direct Replacement: Designed to factory

Direct Replacement: Designed to factory specifications for proper fit

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Reliable Ignition: Engineered to maintain positive primer strikes

Models  SW999

Q: Will this fit my Model 57

Smith & Wesson M&P 40 Shield Recoil Spring Assembly .40S&W Used 40S9 Model 43 Direct Replacement: Designed to factoryRecoil Spring Assembly for Smith & Wesson M&P 40 Shield . 40S&W Part #40S9 Used recoil spring assembly in good working condition for the Smith & Wesson M&P 40 Shield . 40S&W pistol. Product Features: Genuine Smith & Wesson factory part Compatible with M&P 40 Shield . 40S&W models Pre owned in good working condition Factory specifications and tolerances Installation Notes: Gunsmith installation recommended Disassembly and assembly required to replace