“POLYMER BACKUP SIGHTS – BLACK” has been added to your cart. View cart “YHM 22/556 RFL THR PROT 1/2X28 .920” has been added to your cart. View cart HomeClass 3 Firearms, NFA & Destructive DevicesClass 3 Parts & AccessoriesRUGGED SHIM KIT .338 3/4X24 M18X51RUGGED SHIM KIT .338 3/4X24 M18X51$15.33 RUGGED SHIM KIT .338 3/4X24 M18X51 2 in stock RUGGED SHIM KIT .338 3/4X24 M18X51 quantity Buy now Add to WishlistRemove from Wishlist Add to Wishlist SKU: LIP|RGSA017 Category: Class 3 Parts & Accessories Product ID: 54623 Description Rugged’s .338 precision shim kits are designed for 3/4×24″ M18x1 and M18x1.5 barrel threads to align your muzzle brake or flash hider. Related products Add to WishlistRemove from Wishlist Add to Wishlist YHM 22/556 RFL THR PROT 1/2X28 .920 $16.25 Buy now Add to WishlistRemove from Wishlist Add to Wishlist YHM 1/2″-28 CRBNE ADPTR SDWNR M2 BLK $34.00 Buy now Add to WishlistRemove from Wishlist Add to Wishlist YHM 9MM PIST THR PROT 1/2X28 .570 OD $16.25 Buy now