Hatsan Optima Universal Tactical Bipod, Picatinny Mount, Folding/Telescoping LegsHatsan Optima Universal Tactical bipod Aluminum alloy construction Picatinny mount Telescoping legs twist to retract extend 9' to 11' leg lengths Folding legs Rubber footpads 10 oz. Black matte finish Lighten your load! Attach a bipod and let the front of your air rifle rest on it. No need to carry bulky and heavy shooting bags. The folding legs give you the option of using the bipod or flipping them out of the way.