Harris bipods will quickly attach & detach to a variety of rifles. They mount to a quick detach sling swivel stud (sold elsewhere on our website) and offer adjustable height legs. The legs extend by spring action, height settings are adjustable from 9 to 13” (adjustment height range is from resting surface to center of bore), notches on the legs help with leveling. Legs will fold back out of the way when not in use. Made in the USA with construction in aluminum and high carbon steel, anodized black finish.