Griffin Armament Sportsman DT Thread Insert 1/2×28

The Cornerstone thread insert muzzle brake is a 17-4PH stainless steel insert for use with the Sportsman Direct Thread silencer.

The 1/2×28 Insert can be used on small calibers up to 300WM. Sportsman Direct Thread Silencers come with a 5/8×24 TPI muzzle brake thread insert and installation tool.

The Sportsman Taper Mount Thread Insert should not be used as a standalone brake.

17-4 construction
Muzzle Brake offers sacrificial baffle to extend the life of the suppressor
Not to be used as a standalone brake
Insert only
Installation tool is provide with silencer and is sold separately.