Features: Extends from 13 A 1/2" to 27" Attaches directly to a Picatinny Rail only Three-piece smooth leg construction (What's this?) Swivels (tilts) to compensate for uneven terrain. Ultralight weight - 21.5 oz For Sitting Position Tallest of the bipods, useful in snow and grass May be better suited for the very tall Has a built-in sling swivel stud to attach the sling 100% Made in the USA Material: Heat treated steel and hard alloys Hard Rubber Leg Caps Polymer knob Finish: Anodized Black Mfg: Harris