by Richard Mann posted on December 13, 2010 Optics Support NRA Shooting Illustrated DONATE Using Iron Sights on an AR-15 In this article AR, BUIS, iron sights, Magpul, XS Sight Systems, zeroing Related Stories Magpul MBUS Pro Offset Iron Sights XS Sight Systems Angle Mount Sights XS Sight Systems Gallery XS Sight Systems YHM Flip Rear Sight Most Popular First Look: Wilson Combat Tactical Ultralight Rifle Open Carry: You Decide .22LR For Self-Defense? 9mm Double Stack 1911 Pistol Roundup New Revolvers for 2024 Home Defense Pistol Skills