Home / Accessory-Silencer Accessories / Gemtech ADAPTER GM-45/BLACKSIDE 578-28 Sale! Gemtech ADAPTER GM-45/BLACKSIDE 578-28$8500 Original price was: $8500.$8444Current price is: $8444. Only 2 left in stock Gemtech ADAPTER GM-45/BLACKSIDE 578-28 quantity Add to cart SKU: 12192 Category: Accessory-Silencer Accessories Product ID: 33856 Description Description For GM-45 SilencerRear Thread Adapter Related products Gemtech PISTON GM-45 LID MK23 $14800 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 Original price was: $7495.$7135Current price is: $7135. Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351.