MUZZLE BRAKE, Tactical EVO F1 PRO .30Cal, M18x1.0 Thread
Highly effective brake for your 30 Cal rifle.
Made from high grade steel, beautiful appearance and function.
Brake has a removable attachment for mirage band.
An adjustable locking nut is provided to lock the brake in position.
Precision made product.
Popular thread fits many rifles. 
Made in the Czech Republic, by Tactical EVO.
Tactical EVO make products of the highest quality.