Features: Extends from 6" to 9" Direct attachment to a Picatinny Rail only Swivels (tilts) to compensate for uneven terrain Smooth legs Ultralight weight - 12.5 oz Has a built-in sling swivel stud to attach the sling Most useful for shooting off the bench 100% Made in the USA Material: Heat treated steel and hard alloys Hard Rubber Leg Caps Polymer knob Finish: Anodized Black Mfg: Harris