I have rifles with iron-sights without optics, but I have no rifle wearing optics without iron-sights whether fixed, folding or offset. That is going to change though, last night I put a 45-70 Katahdin barrel on my T/C Encore and plan to take one of my T-1 Micros off it's AK to slap on the little beast, no other sights, differant appication.