Looking for a picatinny mount for a Colibri that slips over the air cylinder so a bipod can be mounted. Diameter of tank is 44mm. The ebay one is nice but relies on whatever picatinny accessory to clamp it tight rather than screws. I have one that has picatinny sections at sides and bottom that tightens with screws which is great so want same for another Colibri in the family. PM please with what you have or any ideas. Thank you.