Smith & Wesson M&P Housing Block without Integral Lock - 9mm 40 357 Factory OEM Part 390900000 Internal Parts Install the appropriate pin for

Install the appropriate pin for your model (blue or stainless)

OEM factory used thumb piece and nut assembly for the Smith & Wesson J Frame Model 36 Chief's Special revolver chambered in

Note: This is a genuine Smith & Wesson factory part

Genuine Smith & Wesson OEM cylinder assembly for the N Frame Model 57 revolver chambered in

Smith & Wesson M&P Housing Block without Integral Lock - 9mm 40 357 Factory OEM Part 390900000 Internal Parts Install the appropriate pin forGenuine Smith & Wesson Factory Housing Block Factory OEM sear housing block without integral lock or magazine safety for Smith & Wesson M&P pistols. This genuine S&W part ensures perfect fit and reliable performance. Key Features: Genuine OEM Part: Factory Smith & Wesson part #390900000 No Integral Lock: Housing block without internal lock mechanism No Magazine Safety: Allows firing without magazine inserted Universal Fit: Compatible with M&P 9mm, .