Smith & Wesson M&P 9mm Compact Trigger Bar Assembly with Spring Used – Part# MP903A

Smith & Wesson M&P 9mm Compact Trigger Bar Assembly with Spring – Used

Part Number: MP903A  |  Condition: Used (Factory Original)  |  Caliber: 9mm

Restore your M&P 9 Compact to factory-correct function with this genuine Smith & Wesson trigger bar assembly with spring. The trigger bar transfers trigger pull to the sear, engaging the lever housing block when pulled to initiate the firing sequence. This assembly is ready to install and includes the spring.

• Part Number: MP903A
• Fits: Smith & Wesson M&P 9 Compact (9mm)
• Caliber: 9mm
• Includes: Trigger bar assembly and spring
• Condition: Used – factory original S&W part
• Installation: Gunsmith fitting required; fire control components are safety-critical

Compatibility Note

This trigger bar assembly is specific to the M&P 9mm Compact. It is not interchangeable with the full-size M&P 9, .40 S&W, or .45 ACP M&P 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.

Professional gunsmith installation required. Fire control components are safety-critical and must be properly fitted and tested before use.