Smith & Wesson M&P .40 S&W Locking Block & Pin Used – Part# MP402D K19U polymer follower

polymer follower

ensuring reliable double-action cycling

Part Number: 3010020

ensuring a proper fit and reliable function

Smith & Wesson M&P .40 S&W Locking Block & Pin Used – Part# MP402D K19U polymer followerSmith & Wesson M&P . 40 S&W Locking Block & Pin Used Part Number: MP402D Condition: Used (Factory Original) Caliber: . 40 S&W Restore your M&P . 40 to factory correct function with this genuine Smith & Wesson locking block and pin. The locking block is a critical component that locks the barrel into battery during firing proper fit and function are essential for safe and reliable operation. This listing includes the locking block and pin as an