6-9 inch Harris Style mounting bi-pod Adjustable height extendable legs Hinged base 

With high tech and durable aluminum construction and a steel top platform, this QD Foldable Tactical Mount Bipod features a rubberized stand, a Tactical/Sniper profile, clever dual mounting pairing a Picatinny mount and a swivel stud mount, foldable arms with robust external spring tension control, and fully adjustable legs with Posi-lock wheels and a quick retraction button.