Smith & Wesson M&P 45 Shield Slide Stop Assembly Used – Part# MP45F4

Smith & Wesson M&P 45 Shield Slide Stop Assembly – Used

Part Number: MP45F4  |  Condition: Used (Factory Original)  |  Caliber: .45 ACP

Restore your M&P 45 Shield to factory-correct function with this genuine Smith & Wesson slide stop assembly. The slide stop locks the slide open after the last round is fired and allows the slide to be released when a fresh magazine is inserted — a worn or damaged slide stop can cause failure to lock back or difficulty releasing the slide.

• Part Number: MP45F4
• Fits: Smith & Wesson M&P 45 Shield
• Caliber: .45 ACP
• Condition: Used – factory original S&W part
• Installation: Basic disassembly required; gunsmith recommended

Compatibility Note

This slide stop assembly is specific to the M&P 45 Shield (slim single-stack). It is not interchangeable with the full-size M&P 45 (MP45F1/MP45F2/MP45F3), M&P 45 2.0, or other caliber Shield variants. If you are unsure of compatibility, contact us with your model and serial number.

Factory Replacement Quality

Genuine Smith & Wesson factory parts are manufactured to the exact specifications and tolerances of the originals — same materials, same dimensions, same reliable function.

Gunsmith assistance recommended if unfamiliar with pistol disassembly.