7mm Metal Bushing with Bearing out of stock Precisely CNC machined steel and Kleur:Everglade Precisely CNC machined steel and 6061 T6 aluminum bipod designed to fit standard Picatinny rails and swivel stud mounts Comfortable contoured fit Fully adjustable for cant Rotates 360 degrees for every application (small of back Prometheus Best known for their superb inner barrels