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A lightweight rail adapter that allows the MK23 to accept more modern and far less expensive lights and lasers.

Fits all full sized USP pistols. GG&G has designed and manufactured an HK USP full size flashlight mounting rail adapter meeting the Picatinny Rail specifications.

Fits all USP Compact models. GG&G has designed and manufactured an HK USP compact flashlight mounting rail adapter meeting the Picatinny Rail specifications.

Rear Sight Retaining Screw for Mark 23

Firing Pin Spring for Mark 23

Firing Pin Block for Mark 23

Firing Pin Block Spring for Mark 23

Trigger bar for Mark 23 Pistols

Spring for Mark 23 decock lever

Floorplate for Mark 23 12 round magazines

Decocker for Mark 23

Slide for Mark 23 pistol

Sear for Mark 23

Sear spring for Mark 23

Sear actuator for Mark 23

Disconnestor for Mark 23

Right Safety Lever for Mark 23

Sear axle for Mark 23

Right safety lever pin for Mark 23

Decocking lockout for Mark 23