Home / Accessory-Silencer Accessories / Gemtech ADAPTER UMAREX RIFLES View cart “Gemtech THREAD PROTECTOR 1/2-28 RF” has been added to your cart. Sale! Gemtech ADAPTER UMAREX RIFLES$4500 $4183 Out of stock SKU: 12211 Category: Accessory-Silencer Accessories Product ID: 26747 Description Description M8X.75 to 1/2-28 Adapter Related products SilencerCo O-RING BOOSTER PACK $900 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 Gemtech ADAPTER S&W M&P22C/22LR $6200 Gemtech ADAPTER MM9 FTM 1/2-28 $7500