A simple old Finnish army sling, meant to be used with the M39 rifle, but works equally well with whatever gun you can fit it on - the army used these for every weapon model. Shit grade stuff, in very poor condition.

Too bad these are in horrible shape. This means they might not be in usable condition or broken at some point. The metal knob used to close the other end is missing too. Buy three, you might get one usable strap, who knows. Please accept this before ordering!