I personally like the Bren2 trigger, dont know why folks are eager to change it. Its a clean crisp 2 stage with a light pull imo, not a 1.2lbs trigger for bench shooting but like really nice as you would expect in a CZ.
I agree, the oem Bren 2 trigger is good. I like the wide trigger face compared to most AR triggers.
The problem may arise if we don’t get a favorable ruling on the pistol brace bs. Simply adding a 16” barrel (if any exist) or a barrel extension to make it a rifle won’t make it 922(r) compliant — another victimless atf felony.
A US-made lower, trigger group and pistol grip would give the Bren 2 enough US parts to make it 922(r) compliant.