Article first appeared at American Rifleman.

Many firearm enthusiasts wisely opt to include backup iron sights on their AR builds, but how many actually take the time to zero them? With magnified optics and red dots considered required equipment, are users neglecting to dial-in their irons? Joe Kurtenbach is ready to walk you through the process of ensuring your sights are ready for duty. All you need to follow this method is your rifle with iron sights, your ammunition of choice, a good target and a 25-yard range. Watch the process in this NRA Gun Gear of the Week video hosted by Joe Kurtenbach.