Cirlclip for dragonfly

Anyone know where to buy them in the usa (circlips for dragonfly) i lost mine. Dont want to spend $30 shipping to buy a $2 circlip from inkmachines. I looked online and i cant find any that look small enough. Anyone have an extra they can sell ? Any ideas.... I need anyone/kind that will fit

Its for the pin that connects the excenter to the piston assembly, mine is loose now and its making me think it could slide out on the bottom stroke and hit the frame on the up and cause many problems. It runs fine but im sure the pin can slide cause i can push it around with eaze with a allen key.

RC hobby stores have bunches of tiny clips that should work, I think the Losi microT wheel clips are the right size

The hobby shops that do scale trains are awesome for tiny screws washers and circlips

Thanks Sage for taking a second to help

No problem hope it helps!