This Picatinny rail bipod is quick release with and spring loaded notched legs. Tactical Bipod mounts onto most Weaver/Picatinny type rails found tactical and hunting rifles. Bipod head has a ball swivel joint for making small aiming adjustments without picking up the bipod off the ground. Aircraft grade all aluminum construction. Spring Loaded Latch Lever on the front of each leg for extending or collapsing the legs. Bipod legs can be folded together and moved into a horizontal rest position. Rubber Pod Feet for Stability. Height: 8.25" Collapsed Height: 11.0 Fully Extended. Limited lifetime warranty.