The DoubleStar 223 Carlson Compensator is designed to reduce the recoil of the AR-15 platform. Dual ports on the top half of the compensator direct gas up and out to help mitigate muzzle rise and minimize felt recoil. Fully enclosed bottom half keeps visual signature to a minimum when firing from the prone postion. Precision machined from 1045 Steel and then parkerized to military specification, the DoubleStar 223 Carlson Compensator will withstand years of hard use. Proudly made in the USA.