I'm betting its a GI model without a lowered and flared ejection port. This is normal.
If it is lowered and flared, its a timing issue, the case mouth is hitting the front of the ejection port prematurely. The extractor needs adjusted.
I could make a list of a bunch of guns i have, or "have", or wish I had. Why would one feel compelled to provide that infornation freely? Do you feel the need to show off? Is it some immature game of oneupsmanship?
Why do you feel it necessary to list your guns?