“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 20 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 Add to WishlistRemove from Wishlist Add to Wishlist GPS TAC SUPPRESSOR COVER 22LR 5″ BLK $27.67 Buy now Add to WishlistRemove from Wishlist Add to Wishlist GPS TAC SUPPRESSOR COVER 22LR 5″ TAN $27.67 Buy now Add to WishlistRemove from Wishlist Add to Wishlist DEAD AIR SNDMN/WLFMN FRNT CAP TOOL $28.77 Buy now