Airsoft Inner Barrel Cleaning Unjamming Rod

Description

I'm wanting to buy a plastic unjamming rod so I can clean my barrels. I need one that is at least 540mm (~21.25 in) in length. It must have that loop on other end designed for cleaning away dust and debris from the inside of the inner barrel. I'm not quite sure what someone would be willing to charge to sell one of these to me. Not much I'd imagine, as they are usually included for free with most airsoft gun purchases.