From studying the movement of rifles through thousands of firings, the team at Ultradyne developed a science-based solution designed to keep shooters on target. The engineering behind the Ultradyne Apollo S 6.5 Creedmoor Compensator is one of the most-effective brake designs offered today. Built out of a desire to keep competition shooters aligned with their target during the recoil impulse, thereby allowing for easier follow-up shots and quicker transitions, the Ultradyne Apollo S is built to provide a balanced response to three elements of a rifle's firing process: felt recoil, muzzle rise and gas venting. The chambered design of the compensator therefore controls recoil and muzzle rise while keeping vented gases to a minimum, all while directing them away from the shooter to reduce blast noise and feel. Fits 5/8x24 TPI threaded muzzles For use on any .264-inch or 6.5mm caliber barrel or smaller Weight: 4.4 ounces Made in the USA The Ultradyne Apollo S 6.5 Creedmoor Compensator is machined from 416 stainless steel and can be used on the company's quick-detach Dynamounts. The unit ships with a shrouded timing nut included.