The Firefield(TM) Weaver Barrel Bipod Combo fits both Weaver and barrel mounts, making it adaptable to all rifle and shotgun types. The incorporated Weaver mount, and detachable barrel mount, are simple to install and do not require modification to your firearm. The adjustable, spring-loaded legs extend from 10.75" to 14.5" and rest on notched rubber feet for extra grip on different surfaces. The durable and lightweight aluminum body collapses neatly for easy transport or storage. Included in Package Barrel mount adapter Features Durable and lightweight Attaches to weaver or picatinny rails Rubber feet for maximum stability Legs extend to multiple lengths