I've been digging for info on these the past few days. 99% seem to go with a red dot and maybe folding sights as backup. I'd prefer dedicated irons I think. I'm wondering if standard height AR sights get you to a good sighting plane, or if riser blocks are needed to avoid craning the head to get low enough. Thanks in advance.

AR height sights are fine .

I have both. Irons are back up.

same here i use ar irons and a bushnell trs 25 with an ar rizer hight block