To answer your question crghill, yes they do co-witness because I also wanted to keep the iron sites intact. I ordered the site through "cheaperthandirt.com" priced under $50. They work well for an inexpensive site. My duaghter couldn't hit with iron sights as she had trouble centering the front in the circle of the rear. On this day she and my neice were hitting quarter size stickers at 30-40 yards.