Home / Accessory-Silencer Accessories / Yankee Hill Machine Company UNIV RIFLE ADAPTER 1/2X28 # Sale! Yankee Hill Machine Company UNIV RIFLE ADAPTER 1/2X28 #$7295 Original price was: $7295.$6832Current price is: $6832. Out of stock SKU: YHM-2145-28 Category: Accessory-Silencer Accessories Product ID: 31069 Description Description Fits any 1-3/8-24 Rear Thread1/2-28 TPIFits Most Suppressor Brands Related products Sale! Gemtech ADAPTER SIG MOSQUITO # $4500 Original price was: $4500.$4183Current price is: $4183. Sale! Dead Air Armament XENO MOUNT MUZZLE BRAKE 1/2X28 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 1/2X36 $8900 Original price was: $8900.$8211Current price is: $8211. Sale! Dead Air Armament GHOST FIXED MOUNT 5/8X24 $8900 Original price was: $8900.$7865Current price is: $7865.