Originally Posted by Stuffy
You can buy them from PPS...Ive reassembled guns without them too and they've worked fine. Ive gotten some mixed responses. Some people say to ditch the gasket while other say to keep it.
It acts as a spacer. Might help with efficiencies? I personally never use them because they get all bent during removal. But if I had a box full of good ones, I'd use'em.