Home / Accessory-Silencer Accessories / Gemtech ADAPTER MM9 5/8-24 300BLK View cart You cannot add that amount to the cart — we have 2 in stock and you already have 2 in your cart. Gemtech ADAPTER MM9 5/8-24 300BLK$7500 Out of stock SKU: 12175 Category: Accessory-Silencer Accessories Product ID: 31234 Description Description Subsonic ammo onlyFixed Threadmount Related products Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606. Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 Original price was: $8900.$7865Current price is: $7865.