TipTop EZ Rifle Bipod 13.5" - 23": Sling Stud Mount, Extendable, Folding, with Sling-attached Hole PN:S3-34661 Heavy Duty, Stable, Quick Setup, Light Weight, Sling-attached Hole Included Easiest and fastest stud mount design (Newly Patented) All-weather no-rust black anodized finish Engraved "Tiptop" trademark in the product to show our commitments to you Looking for rifle bipods? TipTop is your answer!