by pseudoanimosity » Fri Apr 01, 2011 9:26 pm
that happened with me on my G&G, but it could be one of two things:
1.) The little spring piece that holds the dust cover closed is jammed up, and is not engaging
2.) The area right above the ejection port where the little dust cover lock is supposed to engage is worn out
#1 is fixable by pulling the little pin back out, and lubing it with some silicon, but if #2 is the problem then you're SOL unless you want to buy a new upper.
"No compromise, not even in the face of Armageddon, it's always been the difference between us, Daniel."