AT3™ Pro Series AR-15 Flip-Up Backup Iron Sights (BUIS) - Front & Rear Set - Same Plane - IS-09

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Product description

Sleek and lightweight, durable and accurate – the AT3 Pro Series Backup Iron Sights are the ultimate value in AR-15 iron sights!

Accurate and Easy to Use

  • Standard A2 sight design makes these easy to sight in. Adjustable front sight post controls the elevation, and the rear sight features a simple knob for windage adjustment
  • Rear sight features a dual aperture – a large aperture for rapid target acquisition in close-quarters, and a small aperture for long-range precision shots.
  • Low-profile – sights fold down to only 7/16″ height when not in use
  • Front sight post can also be replaced with aftermarket A2 compatible front sight posts.

Durable Design

  • Lightweight, durable 6061 aircraft aluminum body, with mil-spec hard-coat anodized finish.
  • Steel mounting bolts provide un-moving accuracy. Recoil-tested hinge and secure locking mechanism
  • Backed by the AT3 Lifetime Warranty

Simple Installation

  • Check out our guide on how to properly set up your backup iron sights!
  • Mount on any standard Picatinny rail such as a flat-top upper and quad rail handguard
  • “Same Plane” sights – the front and rear sights must be mounted at the same height. These will not work with gas blocks that are lower than the height of the upper receiver
  • Add the optional front sight tool to make it a breeze to zero your sights! Save $2 when you add a Front Sight Adjustment Tool for only $6.

Please Note – Since these are “same plane” sights, the front, and rear sights must be mounted at the same height on the rifle. If you are mounting on a gas block that is lower than the upper receiver, check out our gas-block-height sights.

For more information on selecting the correct sights, read our article on choosing the best AR 15 iron sight.

Specifications:

  • Material: 6061 aircraft aluminum
  • Finish: Hardcoat Anodized (black)
  • Weight:
    • 2.7oz (Rear) & 2.2oz (Front)
  • Packaging: PE Bag
  • Mounts to: Picatinny rail
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Customer reviews 206

dean.kwasny Verified buyer
Good price, Well made. Fit and finish is good. They attached to the rail on my AR. No issues at all with that. They work well. Sited in and are accurate. Work well on their own. Work well with all rail mounted electronic equipment. Will provide effective backup to red dot and my other sites and scopes. Affordable and reliable equipment. Satisfied customer.
kevin.horn Verified buyer
Very satisfied with the efficient ordering, shipping, quality and appearance of the sights! Unfortunately, I can’t zero my rifle and be able to flip down the front sight. Two full turns to lower the front sight creates a functionality issue with the mechanism that allows you to flip it down. Giving it 4 stars considering it might me rare to have to bring down the front pin that far with most rifles.
tom.manos Verified buyer
Mounted on a Diamondback AR pistol with a Sig Romeo 5 red dot. It's a compact weapon, requiring compact BUIS. These BUIS are compact, mount easily, and are rugged. I pick up a sight picture quickly with them, and they are perfectly co-planar with my red dot.

My other set is mounted on an AR in 300AAC.

I'm very happy with these, and will happily purchase more in the future.

AT3 Tactical · Thank you for taking the time to leave a review for our AT3 Pro Series AR 15 Flip-Up Backup Iron Sights. We are glad to hear that these sights are working well for you on both your Diamondback AR pistol and your 300AAC. We pride ourselves on providing compact, easy-to-mount and rugged sights for our customers. We look forward to serving you in the future.

robert.chaplin Verified buyer
Generally good. Rear sight has too much play in the hinge.
pastordlmoody Verified buyer
Lowered the front sight adjustment down one revolution and the sight would not fold back down it was locked in position. Backed the front sight back to factory and it will fold down; but is very hard to do. Other than that I really like the sites they give a great sight on target picture. I was able to use them for a shot or two. Thank you DLM Tennessee
ian.ramge Verified buyer
Quite solid and sturdy. I was really pleased with them and how smooth they operated. I'm using them in conjuction with the Sig Sauer Romeo5 sight. Very pleased.
riveraalberto.11 Verified buyer
You guys are awesome

AT3 Tactical · Thank you for the positive review! We are glad to hear that you are satisfied with our product. Our team works hard to provide top-notch customer service and high-quality products. Thank you for choosing our brand. Have a great day!

david.keithan Verified buyer
AT3™ Pro Series AR 15 Flip-Up Backup Iron Sights (BUIS) - Front & Rear Set - Same Plane - IS-09

AT3 Tactical · Thank you for leaving a review for our AT3™ Pro Series AR 15 Flip-Up Backup Iron Sights! We're glad to hear that you're enjoying the front and rear set in the same plane. If you ever have any questions or need assistance, please don't hesitate to reach out to us. We're always happy to help.

brian.bullock jr Verified buyer
Greats sights for back up sighted in great would definitely recommend them
greggaston Verified buyer
Similar to the other clones offered. Purchased the tool but it doesn’t seem to work. Would not purchase again

AT3 Tactical · Thank you for taking the time to leave a review. We apologize for any inconvenience you experienced with our product. Our team would be happy to assist you with the tool and ensure it works properly. Please contact us at support@at3tactical.com and we will do our best to make it right. Thank you for your feedback and support.

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Warranty & returns

Backed by the AT3 Lifetime Warranty!

90-day no-hassle returns

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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