Brake Conical Muzzle T3 Tac Blued muzzle brake with USA 5/8x24 wheelbase and Tactical profile for Tikka T3x TACTICAL A1 rifles.DescriptionBlued muzzle brake with USA 5/8x24 wheelbase and Tactical profile (oriented and only lateral vent windows) for rifles with medium barrel with a muzzle diameter of 19mm and a caliber Max 7.8mm/ 30cal. Original article for Sako and Tikka rifles made by Sako, does not have logos on the article.Examples of compatible rifles: Tikka T3x TACTICAL A1 Tikka T3X CTR (Compact Tactical Rifle) Compatible calibers: .223 Rem, 5.56x45mm, .308 Win, 7.62x51mm, .300 Win Mag, .243 Win, .270 Win, .30-06 Springfield, 7mm Rem Mag, .375 H&H Mag, 6.5 Creedmoor, .338 Federal.Style Number: S54065100