Well, Aero Precision doesn’t put a dust cover on the ejection port. Wow, that’s cheap of them. It’s $8.95 plus shipping if I buy directly from them. So now I need to decide if I want to put a forward assist on it as well. Don’t really know if that’s necessary. If the weapon fails to return to battery, I want to know why but if I’m in the middle of a fire fight with a Demwit, perhaps it’s necessary.