Can’t decide on which ones for my newly built AR. For now, it’s all I plan on shooting with. I’ve been looking at Troy battle sights, Mbus Pros, Diamondheads. I want them to be accurate as possible and reliable. I may add a LPVO in the future but I think I can be satisfied for a good while with irons!

Daniel Defense A1.5's are what I like for fixed sights, Troy's for folding.

accurate as possible leads you to pinned rear sights and trued front blades. But I'm not sure how reliable they are when taken from service rifle matches to the field. I"ve never had a single issue with a Holliger pinned rear sight, but YMMV.

That said one could put a receiver sight on the rail, and a aperture on a front sight base on the gas block too.

For all of that, I've just thought that standard A2 upper with sights and normal front sight on a 20 inch gun never were bad at all.