Anderson upper receiver pivot lug too large.

[Disciple]

I guess I could use it but if I accidentally let it swing open in an uncontrolled way it could damage the front of the magazine well. The upper pivot lug is not as round as other lugs, but has a bit of a corner to it. That corner is what I would try to grind off. I would rather grind the Upper than damage my MEGA lower.

Are there any other interference points to check for?