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Smith & Wesson M&P Locking Block Coil Pin used part label on a white background.

Smith & Wesson M&P Locking Block Coil Pin .40 S&W Used Part MP4012A

$6.99

Smith & Wesson M&P Locking Block Coil Pin — Part MP4012A

Original Smith & Wesson factory locking block coil pin for the M&P semi-automatic pistol chambered in .40 S&W. Secures the locking block assembly. Used part, cleaned and inspected.

  • Part Number: MP4012A
  • Fits: S&W M&P .40 S&W
  • Caliber: .40 S&W
  • Condition: Used — Cleaned & Inspected
  • Type: OEM Factory Part

Installation: Disassembly and reassembly required. Installation by a qualified gunsmith is recommended.

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