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

Based on 206 reviews

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Backed by the AT3 Lifetime Warranty!

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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

Products available on this page:

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.

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.

4.6 206 reviews