Finger cots can work as will electrical tape. I've never heard about nylons but would think they would work. I haven't tried either one. For AR types they do make a plastic cover for them. Look at the web for various slings. You can get multiple options.
One thing if you day take a tumble make sure the muzzle is clear. I've seen people trip well hunting and the barrel can get some foreign material in it. I was lucky the last time I fell I only ended up getting wet(thin ice).