[Rotting]

So I picked up the Hephaestus trigger assembly (found that their set had better review than the RA-Tech assembly) and have it on the desk for this weekend to install.

Also picked up the RA-Tech steel bolt catch. Installed it and threw in an empty mag (made sure it wasn't checked for dry-fire mode), pulled back the charging handle, and didn't lock. Not too sure what to do here. I have a washer on each side of the bolt catch but that doesn't seem to be doing anything. There is very minimal play, just enough to allow it to freely move. Any suggestions?