Why You Should Have Iron Sights
Modern electronic optics and magnified scopes are typically well-built and dependable, but even premium models are still susceptible to failure. Glass can break, batteries can die, and mounting hardware can become compromised - all of which are less than ideal when you're in the field or smack in the middle of a gun fight.
In these situations, the ability to quickly switch to backup irons can allow you to stay in the fight and maintain accurate shot placement when speed and precision matter most.
Criteria
Not all sighting systems are created equal. The Classic Firearms team recommends selecting an iron sight set that is made from durable polymer or metal, as they are less likely to bend or break than standard plastic sights. Your sights should also be adjustable for windage and elevation, so they can be zeroed. This way, you don't have to adjust your aim when switching between or co-witnessing with iron sights and an optic.
The Best AR-15 Iron Sights In 2024
Given the immense popularity of the AR platform, there are dozens of aftermarket iron sights to choose from. We've narrowed it down to the five best options available for use with general purpose defensive rifles in 2024, and we're sharing our picks so you can make a more informed purchasing decision.
Magpul MBUS 3 Flip-Up Sights
The low profile MBUS 3 flip-up sights are constructed of impact-resistant polymer and feature an ambidextrous spring-loaded push button for rapid deployment. As our most affordably priced pick, MBUS 3 sights are the perfect for shooters on a budget or those working on their first AR-15 build.
Magpul MAG1167-BLK MBUS 3 Rear Sight Flip Up Black for AR-15, AR-10, M4, M16
KRISS Defiance Flip-Up Sights
If you're looking for a minimalist iron sight set with superb functionality, consider the Defiance flip-up sights from KRISS USA. These sights are sleek and slim, yet have robust textured adjustment knobs and multiple apertures for shooting under different conditions.
FAB Defense Flip-Up Sights
FAB Defense sights are widely considered to be the standard for backup irons on defensive rifles. Utilizing a unique optical tunnel design, these flip-up sights create a more natural sight picture that allows the shooter to rapidly acquire and transition between targets.
Magpul MBUS Pro Flip-Up Sights
For those who prefer the look and feel of steel, MBUS Pro flip-up sights offer an extremely tough backup sighting system with enhanced corrosion resistance. They are also compact enough that they will not interfere with light or laser modules when not deployed.
Midwest Industries Combat Rifle Flip-Up Sights
Midwest Industries' Combat Rifle sights are made with lightweight yet durable 6061 aluminum and feature tactile adjustment knobs. Whether you're building a home defense gun or customizing your patrol rifle, you can count on these sights to get the job done every time.
Got Irons? Next, Pick Out Your Perfect Optic!
Once you have a solid set of iron sights on your rifle, it's time to select the best optic for your defensive setup. Watch our video below to learn the difference between the different types of rifle optics and find out which one is right for you.
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