Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000

Smith & Wesson M&P .45 ACP Lever Housing Block & Pins Used – Part# MP4503

$15.99
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Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
  • Smith & Wesson MP4503 Smith & Wesson Pistol M&P 45 Lever Housing Block and Pins Used Part .45 S&W Part 000000000
Smith & Wesson M&P .45 ACP Lever Housing Block & Pins Used – Part# MP4503

Smith & Wesson M&P .45 ACP Lever Housing Block & Pins Used – Part# MP4503

$15.99

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

Part Number: MP4503  |  Condition: Used (Factory Original)  |  Caliber: .45 ACP

Restore your M&P .45 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.

  • Part Number: MP4503
  • Fits: Smith & Wesson M&P .45 ACP
  • 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 ACP. It is not interchangeable with 9mm or .40 S&W 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.

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