Ultra-light Primos Trigger Stick Gun Mounted Bi Pods are manufactured with heat-treated steel and hard alloys. These bipods are quick-detachable and clamp to the sling swivel stud of bolt action rifles with a conventional stock design, or a picatinny rail on a modern sporting firearm. Like every Trigger Stick, the new Primos Gun Mounted bi pods adjust to your desired height with just one hand and the pull of a trigger.