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

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


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Lifetime WarrantyOn All AT3 Brand Products

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot Sights, Handguards, Iron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

Fast & Free Shipping On orders over $50

You will receive fast, free shipping for all orders over $50

Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.

Most orders received by 1pm CST ship the same day

You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.

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

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

  • 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 $3.95 when you add a Front Sight Adjustment Tool for only $8.

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.

  • 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

Based on 75 reviews
At3 pro series

The sights seem to be pretty durable. Good sight picture. They don't auto flip up NBD For 60 OTD bucks you'd be hard pressed to find better

Thanks for sharing your feedback, Joshua. We're glad you're satisfied with your purchase. Cheers!

These sights were dead on in 9 shots. Thank you very much for the instructional videos too.

Thanks for sharing your feedback, John. We're glad you're satisfied with your purchase. Cheers!
Good not great

Good iron sights but required oil and working back and forth to get them to lock properly. Once you use them they work great with excellent sight picture.

Thanks for sharing your recommendations, Nathan. We're glad you're satisfied with your purchase. Cheers!

Poor quality

Neither sight flip up properly, in order to get the sight to come they need to be forced up. Rear sight is very wobbly side to side.

So sorry to hear about the issue, Terry. I sent you an email, we'd like to get the issue resolved right away. Looking forward to your response.
Great product, excellent service!!

After searching for a set of BUIS for my rifle, I found AT3 and was pleased with the personal service and product guarentee. There was a slight issue with my order and the team at AT3 went above and beyond to make it right. The sights are made well, metal not polymer and priced very competitively. I highly recommend this product and AT3, they back what they sell!!

Thanks for sharing your feedback, Steve. We're glad you're satisfied with your purchase. Cheers!

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