Smith & Wesson M&P Housing Block without Integral Lock - 9mm 40 357 Factory OEM Part 390900000 Internal Parts Note: This is a genuine

Note: This is a genuine Smith & Wesson factory part

19 K-Frame

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

Checking hand-to-ratchet engagement

Smith & Wesson M&P Housing Block without Integral Lock - 9mm 40 357 Factory OEM Part 390900000 Internal Parts Note: This is a genuineGenuine 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, .