Extreme Clamping System (ECS)

Our ambitious project to engineer an all-new array of advanced scope mounts and scope rings has been a success, and the new Extreme Clamping System (ECS) is ready for production. Engineered here in Houston and featuring USA-made steel hardware, ECS mounts can be safely and repeatably torqued to 65-in lbs, providing over 2,000 lbs of clamping force per cross bolt. One-piece mounts featuring up to three cross bolts are available in a variety of tube diameters, heights, and forward offsets, as well as traditional scope rings and micro red dot mounts. Primary Arms Optics ECS mounts will set a new standard for toughness, with price tag that make them accessible to every shooter.