I put together an Aero M5E1 (my first .308 AR) and it looks amazing. I took it to the range a week ago to get it sighted in and after a few rounds, it stopped feeding. It was firing fine and ejecting spent casings like it should be had some trouble racking the next round. From my AR15 experience, I concluded that the issue is either the feed ramps or spring weight. I bought the upper finished so I would've figured the ramps would be good but the spring was part of a kit so I'd think the same there too. I've heard that these usually don't go together and function from the get-go quite as well as AR15s but my whole set-up is Aero. Hopefully some of you more experienced .308 guys can help. I'm including a few pictures of the feed ramps.... are they too rough?

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