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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


MSRP: $58.99


Out Of Stock

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 65 reviews
At3 pro series flip up backup iron sights (BUIS)

I like them, well made and easy to mount.

Yet, I purchased these in August of 2019, installed on my Core 15 with ease, removed them to add AT3 RD 50 red dot sight, re installed them and the rear sight attachment screw is starting to strip out. I would not be able to remove and reinstall anymore for fear that the rear sight will strip all the way out.
I just hope the sights stay sighted in when firing rifle. Will find out this weekend. Hope it doesn't fall off or worse.
Otherwise I would have given 5 star rating.
3 star for the screw starting to strip.

Sorry to hear about the issue, Thomas. Please keep us posted, we'd like to provide assistance if you continue on encountering issues. Let us know.
Great BUIS

I was impressed with these sights. I have several different brand all about the same price point and theses sights are by far superior. Going to another set after this comment.

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

You'll enjoy solid metal front rear folding sights that attach easily to picatinny rail. Front Sight Adjustments is easily done with the sight adjustment tool. Solid performance.

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

Very well pleased they work well for what I used them for

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

Fast delivery and it works great.

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

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