Selling my Vais muzzle brake I bougth new a few month ago. Its been professionaly hot blued by well known central ohio gunsmith Jim Caudill (Mauser Man). Shown here on my Sav mod 12 22-250 varmint barrel thats .815 OD. The OD of the brake is .875. Only selling bc Im going up to a 6mm so i dont need this anymore. Includes the brake wrench as well.