Smith & Wesson Pistol M&P 9mm / 40 S&W sear Housing Block assembly with Magazine & Manual Safety OEM Factory New Part,
Part# 393120000
Fits: M&P 9mm & .40 S&W
Features: Smith & Wesson factory part.
Gunsmiths Required: Disassembly and Assembly required to replace part 
Some parts may require installation and fitting by a qualified gun smith Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts
        Some parts may require installation and fitting by a qualified gun smith Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts
 
             
               
               
               
               
               
               
                   
                   
                   
                   
                  