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

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$49.99
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Birchwood Casey Shoot-N-C Target - Round Bullseye - 12" - 5 Targets

Birchwood Casey Shoot-N-C Target – Round Bullseye – 12″ – 5 Targets

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

Have Questions About this Product?


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.

AT3 Lifetime Warranty Logo

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

This includes AT3 Red Dot SightsHandguardsIron 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.

Customer Reviews

Based on 166 reviews
77%
(127)
13%
(21)
4%
(6)
4%
(6)
4%
(6)
D
David Meloche
Works great

Installed on my .556 and it holds well. Went to the range and it was easy to dial in. Not to mention half the price of most places. Very happy with my purchase.

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

A
Antwain
Pretty good

Solidly built, seems to be well made. I wish they were spring loaded like my Ruger sights but it’ll do. Good job AT3!!!

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

B
Bruce Wilson
Excellent for price

I noticed that Gregory S. had trouble getting the rear sight to lay flat with the battle sight up. I have no problem with that as I have a Side Charge so I can put my sight more to the rear. I also did an eyeball co-wittness, the problem right now is weather and COVID keeping me from the range. See photos.
Great sight I'm very pleased.

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

G
Greg S.
Great Value for this System

The only quirky thing is that the rear sight will not lay perfectly flat if it is folded with the Battle-sight up (Pic1). However, if the fine peep-sight is up (pic2) and the sight folded, it is perfectly flat! Not a big deal, just something I noticed.

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

R
Richard Walker
Nice sights

Mounts easily, adjusts easily. Good iron sights for the rifle. I'd recommend.