Home / Accessory-Silencer Accessories / Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28 View cart “Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI” has been added to your cart. Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28$4500 In stock Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28 quantity Add to cart SKU: DA422 Category: Accessory-Silencer Accessories Product ID: 33718 Description Description For FN 5.7Requires aftermarket barrelWill not work on OEM barrel Related products Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Gemtech ADAPTER S&W M&P22C/22LR $6200 Sale! Rugged Suppressors OBSIDIAN PISTON 9/16×24 $8000 Original price was: $8000.$7196Current price is: $7196. Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351.