hey guys. I'm building an AR pistol and I'm going with flip up sights instead of an optic since it'll be a short range weapon and don't want to spend the money on a scope. So my question is about the difference between the flip up sights out there. I've seen super cheap eBay sights for 30-40 bucks, polymer Magpul sights and then 200+ Troy industry sights. I've never used or have any experience with iron sights so I'm curious what the advantage is to the more expensive ones, if any. Also what should i look for in a sight and what are some common problems with lower quality sights.
Thanks in advance
Thanks in advance