Aero M5E1 Feed Issues

[DireWolf]

Misaligned gas block/tube is a potential direct cause of insufficient gas.

Does the bolt "stick" close? e.g. - does it have to be "mortared" open, or does it eject the spent case normally? If it's sticking closed, pull the bcg, check the FP and make sure bolt cams smoothly...

If it does eject, how strong is the ejection? Subsequent to firing, does the bolt/carrier come to rest fully closed but with an empty chamber?
If so (and bcg checks out) then next thing I'd check (assuming good factory ammo in use, not crap/reman, etc.) is to make sure gas system components are aligned and unobstructed - start by check for block alignment, possible debris in tube, etc...Could be other issues as well (e.g. out of spec port, bbl, etc.) but those may take more effort to verify than the initial troubleshooting steps previously indicated.

ETA: from description it appears you're seeing full range of motion from the bcg, but good idea to verify that as others have mentioned...

Also, check to make sure you accounted for proper offset when mounting the gas block.