Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID MK23 View cart “Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28” has been added to your cart. Gemtech PISTON GM-45 LID MK23$14800 Only 1 left in stock Gemtech PISTON GM-45 LID MK23 quantity Add to cart SKU: 12190 Category: Accessory-Silencer Accessories Product ID: 26720 Description Description GM-45/Blackside PistonFits HK Mk 23 Pistols Related products Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 $7135 Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7495 $7135 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100