A-TEC A-Lock Mini Thread Adapter for the Optima-45/H2 sound moderator. Thread size: 5/8″-24

A-TEC A-Lock Mini Thread – a special adapter for most common muzzle thread standards. Designed for quick installation/removal of the Optima-45 sound moderator or the DGK Mini Muzzle Brake, as well as for replacing them. WARNING! To prevent the threaded adapter from getting stuck inside the sound moderator, make sure the adapter is secured to the barrel using a thread lock (for detachable connections) before installing the sound moderator. It is recommended to lubricate the external threads on the adapter with high-temperature grease (for example, Bore Tech EXTREME GREASE HD or Shooters Choice All Weather High-Tech Grease). Manufacturer: A-TEC Model: A-Lock Mini Thread Silencer Adapter Package Contents: Thread protector (1) Material: Aluminum alloy Country of manufacture: Norway Muzzle thread: 5/8″-24 Weight, g: 43 Length / Dimensions: 38×21.6×21.6 mm Caliber group: 7.62 mm (.30), 7 mm (.284), 7.92 (.311), 8 mm (.323), 8.6 mm (.338), 9.3 mm (.366), 6 mm (.243), 6.5 mm (.264), 9.53 mm (.375)