Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID MK23 You cannot add "Dead Air Armament KEYMO FLASH HIDER M14X1LH" to the cart because the product is out of stock. Gemtech PISTON GM-45 LID MK23$14800 Out of stock SKU: 12190 Category: Accessory-Silencer Accessories Product ID: 26720 Description Description GM-45/Blackside PistonFits HK Mk 23 Pistols Related products Gemtech ADAPTER S&W M&P22C/22LR $6200 Sale! Dead Air Armament XENO MOUNT FLASH HIDER 5/8X24 $8900 $8472 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 $7135 Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561