*18x1 To 5/8x24 Thread Adapter For 9mm Cz Scorpion & Tikka Sporter

18X1 to 5/8x24 Thread adapter for 9mm CZ Scorpion EVO 3 S1 pistol & Tikka Sporter. This adapter will enable the use of a more common threaded muzzle brake, compensator or suppressor. Machined steel, finished in durable black oxide with machined wrench flats. OD is .88"