“DEAD AIR DETENT RING KEYMO” has been added to your cart. View cart HomeClass 3 Firearms, NFA & Destructive DevicesClass 3 Parts & AccessoriesYANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X28YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X28$70.75 YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X28 Out of stock SKU: LIP|YHM-2189-28 Category: Class 3 Parts & Accessories Product ID: 87907 Related products Add to WishlistRemove from Wishlist Add to Wishlist GPS TAC SUPPRESSOR COVER 7.5″ TAN $34.39 Buy now Add to WishlistRemove from Wishlist Add to Wishlist YHM 308 RFL THR PROT 5/8X24 .725 OD $16.25 Buy now Out of stock Add to WishlistRemove from Wishlist Add to Wishlist SUREFIRE SOCOM SHIM KIT 5/8X24 $11.00 Read more