You cannot add "DEAD AIR THREAD SPACER 1/2X28" to the cart because the product is out of stock. HomeClass 3 Firearms, NFA & Destructive DevicesClass 3 Parts & AccessoriesYHM QD MOUNT THREAD PROTECTORYHM QD MOUNT THREAD PROTECTOR$16.25 YHM QD MOUNT THREAD PROTECTOR 6 in stock YHM QD MOUNT THREAD PROTECTOR quantity Buy now Add to WishlistRemove from Wishlist Add to Wishlist SKU: LIP|YHM-3114 Category: Class 3 Parts & Accessories Product ID: 54049 Description This protective cap will keep the ACME threads on your Q.D. flash hiders and mounts from becoming dirty or damaged when your suppressor is not in use. Related products Out of stock Add to WishlistRemove from Wishlist Add to Wishlist DEAD AIR SNDMN/WLFMN FRNT CAP TOOL $28.77 Read more 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