Bipod attaches to virtually any sling swivel studded firearm. Aircraft grade aluminum and steel construction. Spring loaded folding action to deploy the legs and retract under the forearm with a push button. Includes a retention knob for locking the legs in place. Rubber pod feet provide extra stability against slipping. Adjustable height of 5 1/2 to 8 inches. Features 3 adaptors to fit any gun: an AR-15 hand guard adapter with sling stud, a universal barrel mount, and Weaver Picatinny rail with sling stud. Dimensions with legs folded and collapsed: 7"L x 3"W x 2"H Weight: 10.2 oz.