Lion Gears Scout-Pod Swivel Stud Bipod, 6.4" to 8.1" Heigth Adjustable, SP-BL07SS Foldable Bipods with Button Locking position Spring-Tensioned Easy Pull and Auto Retractable Legs for Quick Height Adjustment, 6.4" to 8.1" Adjustable Simple and Sturdy Mounting Deck for Swivel Stud Low Profile and Light Weight (11.5oz/325g) Rubber Feet for Stability