No catch bolt catch - Tiger Rock AR-15 Bolt Catch Assembly Kit w/ Plunger, Spring & Roll Pin

Installed in a custom builder set Aero M4E1 lower and it wouldn't catch, even with manual manipulation. It may work on the standard version or other lowers, but it was a no go on this one. Just didn't have enough play to rock down to catch the bolt. It's like it had too much material in the way and needed to be grinded or sanded down. It could be from the FDE paint.