Home / Accessory-Silencer Accessories / Dead Air Armament KEYMO ZERO .578-28 Sale! Dead Air Armament KEYMO ZERO .578-28$9000 Original price was: $9000.$8472Current price is: $8472. In stock Dead Air Armament KEYMO ZERO .578-28 quantity Add to cart SKU: DA322 Category: Accessory-Silencer Accessories Product ID: 106430 Description Description .45 Caliber Related products Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351. Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28 $4500 Sale! Dead Air Armament GHOST FIXED MOUNT 5/8X24 $8900 Original price was: $8900.$7865Current price is: $7865. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 Original price was: $7495.$7135Current price is: $7135.