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Spare 12rd magazine for Mark 23 pistol.

5+6 Detent plate will convert USP full size and USP Compact pistols to safety only variants.

A3 Buttstock MP5 Single position

3-Position retractable stock for MP5

Spurred hammer for DA/SA(V3) P series pistols

Firing Pin for Mark 23

Mark 23 roll pin. Used as firing pin retaining pin, extractor pin, and magazine release pin

Locking bolt for Mark 23

Slide release lever for Mark 23

MR762 A4 1.3MM GAS VENT SCREW. COMES INSTALLED ON MR762 A4 RILFES.

Functionally superb, the ambidextrous G-Code Prime Carry holster is precision formed and engineered to provide you with one holster for any situation. Superior fit, comfort, and security enhance the carry of your handgun while its slim profile distills the rig's perimeter facilitating a no-print silhouette. This HK-exclusive product is offered with black tactical fuzz over the gray kydex. With an open base, the Prime carry will fit any size variant of the VP9 series pistols.

MR556 A4 1.8MM GAS VENT SCREW. RIFLE AND PISTOL SHIP WITH 1.3MM INSTALLED.

Optic plate #6 for ACRO optic.

Gas Block, Bleed Off Valve for MR556