“YHM 9MM PIST THR PROT 1/2X28 .570 OD” 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 13 in stock YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X28 quantity Buy now Add to WishlistRemove from Wishlist Add to Wishlist SKU: LIP|YHM-2189-28 Category: Class 3 Parts & Accessories Product ID: 87907 Related products Out of stock Add to WishlistRemove from Wishlist Add to Wishlist DEAD AIR THREAD SPACER 1/2X28 $15.92 Read more Add to WishlistRemove from Wishlist Add to Wishlist YHM 22/556 RFL THR PROT 1/2X28 .730 $16.25 Buy now Add to WishlistRemove from Wishlist Add to Wishlist YHM 9MM PIST THR PROT 1/2X28 .570 OD $16.25 Buy now