I don't have an airsoft gun but I do have a paintball gun. It's a few years old and I hardly use it but here you go:
I've got a better barrel for it too but I cannot find it atm.
Better image but some stupid watermark.
*don't hotlink*

I've got a better barrel for it too but I cannot find it atm.
Better image but some stupid watermark.
*don't hotlink*