Home / Accessory-Silencer Accessories / Gemtech ADAPTER UMAREX RIFLES # Sale! Gemtech ADAPTER UMAREX RIFLES #$4500 Original price was: $4500.$4183Current price is: $4183. Out of stock SKU: 12211 Category: Accessory-Silencer Accessories Product ID: 26747 Description Description M8X.75 to 1/2-28 Adapter Related products Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 Original price was: $8900.$8351Current price is: $8351. Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Rugged Suppressors OBSIDIAN PISTON .578X28 $8000 Original price was: $8000.$7196Current price is: $7196. Sale! Rugged Suppressors FLASH HIDER FRONT CAP 5.56 $10000 Original price was: $10000.$8715Current price is: $8715.