Home / Accessory-Silencer Accessories / Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28 View cart “Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH” has been added to your cart. Sale! Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28$8500 Original price was: $8500.$8444Current price is: $8444. Out of stock SKU: 12196 Category: Accessory-Silencer Accessories Product ID: 26726 Description Description For GM-45 SilencerRear Thread Adapter Related products Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715. Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Dead Air Armament GHOST FIXED MOUNT M13.5X1LH $8900 Original price was: $8900.$7865Current price is: $7865. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 Original price was: $7495.$7135Current price is: $7135.