 Wow. And it keeps your red dot completely clear of any gas. And let me just make it clear for people who aren't shooting red dots. If you start spraying oil on your red dot, before long you won't be able to really see through it. Correct. And it's a real issue. And so, I mean, everybody who's shooting red dots is keeping a lens cloth or something handy for wiping the thing off. I was at the range just last week, same deal. I mean, I'm shooting it and going, man, that thing's just getting gunky.