Smith & Wesson M&P .40 Compact Locking Block with Pins Used – Part# MP4015G Power Custom Performance Notes

Performance Notes

Factory OEM Part #423740000

Part Number: 915K

Out-of-Battery Safety: The disconnector physically blocks the trigger from releasing the sear unless the slide is fully forward and locked

The trigger assembly is a critical fire control component responsible for initiating the firing sequence in both single- and double-action operation

Smith & Wesson M&P .40 Compact Locking Block with Pins Used – Part# MP4015G Power Custom Performance NotesSmith & 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