Smith & Wesson M&P .40 Compact Locking Block with Pins Used – Part# MP4015G 4567 Smith & Wesson Model 21

Smith & Wesson Model 21 -

Compatible Models (2

Known for its durability and versatility

Part# 4138D Smith & Wesson Pistol Model 41

This genuine S&W replacement barrel (part #219360000) is manufactured to original factory specifications

Smith & Wesson M&P .40 Compact Locking Block with Pins Used – Part# MP4015G 4567 Smith & Wesson Model 21Smith & Wesson M&P . 40 Compact Locking Block with Pins Used Part Number: MP4015G Condition: Used (Factory Original) Caliber: . 40 S&W Restore your M&P . 40 Compact to factory correct function with this genuine Smith & Wesson replacement locking block assembly. This listing includes the locking block with pins a complete drop in assembly for the compact variant. The locking block is a critical component that locks the barrel into battery during