SWISS PRODUCTS K-31 MUZZLE BREAK

This brake is designed specifically for the K31 rifle and shows an effective range to 23% felt recoil, which makes it THE most effective .308 rifle brake on the market. Intended for use on a K-31 that has been threaded to accept it with the 14mmx1 Threading Die, sold separately.  The Muzzle Break itself is extremely effective and acts secondarily as an effective Barrel Damper.