Features:Extends from 6 to 9Direct attachment to aPicatinny Rail onlySwivels(tilts) to compensate for uneven terrainQuick Deploy spring loaded self-leveling legsUltralight weight 13 ozHas a built-in sling swivel stud to attach the slingMost useful for shooting off the bench100% Made in the USAMaterial:Heat treated steel and hard alloysHard Rubber Leg CapsPolymer knob