Smith & Wesson M&P 45 2.0 Lever Housing Block & Pins Used – Part# MP4503D

Smith & Wesson M&P 45 2.0 Lever Housing Block & Pins – Used

Part Number: MP4503D  |  Condition: Used (Factory Original)  |  Caliber: .45 ACP

Restore your M&P 45 2.0 to factory-correct function with this genuine Smith & Wesson lever housing block and pins. The lever housing block is an internal chassis component that houses and retains key trigger mechanism parts — proper fit is essential for safe and reliable fire control function. This listing includes the housing block and pins as an assembly. The M&P 2.0 features updated internal geometry — use only 2.0-specific parts for proper fit.

• Part Number: MP4503D
• Fits: Smith & Wesson M&P 45 2.0
• Caliber: .45 ACP
• Includes: Lever housing block and pins
• Condition: Used – factory original S&W part
• Installation: Gunsmith fitting required; fire control components are safety-critical

Compatibility Note

This lever housing block is specific to the M&P 45 2.0. It is not interchangeable with the original M&P 45 (MP4503), 9mm, or .40 S&W 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.