Anyone ever seen this? I assume this is a part of the sight; not sure how anything could get in there... Cleaning up after a range trip last night and noticed a rattling noise in the upper. Thought it was a primer or carbon chunk or something stuck somewhere in the upper but couldn't find it. I was about to give up when I looked to verify the sight was off and I see this little guy just floating around in there! I've run eotechs for 10+ years and this one for 3 or 4 and never had a problem other than dead batteries...
Waiting on a email from customer service.