I'm working on finishing up a build and ran into an issue with the Aero Precision M4E1 Lower and BAD Ambi 45 Short Throw Safety Selector not playing nice together. Tried searching the forums, but couldn't find anything specific.

See the attached picture. The Aero Precision M4E1 lower is a bit thicker on the right side and is preventing the BAD Safety Selector from lining up properly. There is a pin in the BAD that's preventing it from lining up right.

Attachment 50875

Anyone else encountered this issue? What's the best way to resolve it? I'm trying to figure out if that pin is truly necessary. Maybe just file it down and move on?