Harris 1A2-L Bipod with Stud Mount 9" to 13" Black FrictionBi pod Series "1A2": Fixed attachment to rifle (does not swivel). Hinged base has tension adjustment and buffer springs to eliminate tremor or looseness. Attaches or detaches in seconds Positively will not change point of impact Quick folding or erection Attachment permits normal use of carrying sling Fits practically all bolt action rifles 1A2L: Extends 9" to 13" Two Piece Standard Legs Friction adjustable (H L)