Yep. It's strips of *Sniper veil* a*veil*able [sorry!] in colours ranging from rocky/sandy, as per the Swiss one shown below, to the more greenish ones the Brits and Russians issue. And if you don't like the green colour of one for use in Afghanistan or Iraq, just leave it out in the sun a few days, then dye it with MRE coffee or messhall tea.
The Canadians and Dutch have them in varying colours, too, as do the South Africans. The Marine in the pic uses cloth veil strips for camo on his rifle. I like tan masking tape strips.