Home / Accessory-Silencer Accessories / Dead Air Armament KEYMO ZERO 1/2-28 View cart “Gemtech GM9 THREAD REAR MOUNT M18X1RH” has been added to your cart. Sale! Dead Air Armament KEYMO ZERO 1/2-28$8900 Original price was: $8900.$8472Current price is: $8472. In stock Dead Air Armament KEYMO ZERO 1/2-28 quantity Add to cart SKU: DA320 Category: Accessory-Silencer Accessories Product ID: 106424 Description Description .30 Caliber Related products Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7895 Original price was: $7895.$7188Current price is: $7188. Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 1/2X36 $8900 Original price was: $8900.$8211Current price is: $8211. Sale! Rugged Suppressors OBSIDIAN PISTON .578X28 $8000 Original price was: $8000.$7196Current price is: $7196. Sale! SIG SAUER MUZZLE BRK CL 7.62MM 25 DEG $17999 Original price was: $17999.$16957Current price is: $16957.