I don't see well enough to chose irons, but the concept is appealing.
I thought the same thing, but I was pleasantly surprised after I put a Williams peep and a red fiber optic front bead on. That front bead is fuzzy, but I can consistently ring a 12 inch gong with my 760 carbine and this combo at 100 yds. That's minute of deer in my book. You should at least give it a try.