I, for one, really like the Ambi bolt release on my BCL 102 and RA XCR-L.
My Travor 21 BR is different, however, with a little practice, it works well.
It's just me and my issue, but I don't like having extra stuff hanging around my trigger.
Not that I have any say, however; I would like ATRS to build an NR AR lower that similar to Radian Arms Lower.
To go along with their Raptor Charging Handle