“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 1/2X36YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X36$70.75 YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X36 5 in stock YANKEE HILL MACHINE COMPANY HUB DIRECT THREAD MT 1/2X36 quantity Buy now Add to WishlistRemove from Wishlist Add to Wishlist SKU: LIP|YHM-2189-36 Category: Class 3 Parts & Accessories Product ID: 79073 Related products Add to WishlistRemove from Wishlist Add to Wishlist YHM 5/8″-24 CRBNE ADPTR SDWNR M2 BLK $34.00 Buy now Add to WishlistRemove from Wishlist Add to Wishlist DEAD AIR WAVE SPRINGKEYMO $10.08 Buy now Add to WishlistRemove from Wishlist Add to Wishlist SCO O-RING PACK $11.90 Buy now