Seekins 0011510039 ATC .30 3/4x24 Black CompensatorThe Advanced Tactical Commentator (ATC) by Seekins Precision is built to high standards, and is an ideal addition to virtually any rifle set up. The ATC's port design dramatically reduces both felt recoil and muzzle rise, promoting faster follow up shots and increased target transitions. In addition, it ships with a timing nut, making installation simple, and is available in multiple calibers. Features: Made from high quality 416 Stainless SteelAvailable in multiple calibersAvailable in Surface Element Treatment or Bead Blast finishesShips with timing nut for easy installation Seekins Precision ATC .30 5/8x24 Black Compensator 0011510039