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OPEN BOX RETURN AT3™ RRDM™ 3X Red Dot Magnifier with Flip-to-Side Mount

OPEN BOX RETURN AT3™ RRDM™ 3X Red Dot Magnifier with Flip-to-Side Mount

Only 7 Remaining

90 Day No-Hassle Returns We Pay Return Shipping

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at support@at3tactical.com and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at support@at3tactical.com. We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you’re dissatisfied with your purchase, in any way, please contact us at support@at3tactical.com – we will do our best to make it right.

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.

OPEN BOX RETURN – AT3 3X RRDM (Ruggedized Red Dot Magnifier)

Returned items, may be scuffed or scratched, packaging may be damaged. Guaranteed functional + lifetime warranty!

Extend the range of your Red Dot Sight!

No need to choose between the close-quarters advantage of a red dot sight, and the long-range benefits of a scope. Get the best of both worlds with a simple flip of the magnifier.


  • Easy upgrade to extend the range of any red dot sight with 3X magnification
  • Quickly transition between short- and long-range shooting scenarios. Just push the button and flip the magnifier
  • Easy install & removal with Picatinny thumb screw mount


  • Crystal-clear multi-coated optics for a sharp sight picture
  • Adjustment screws make it simple to center the red dot in the sight picture
  • Fast focus adjustment ensures a crisp sight image


  • Sturdy flip-to-side mount with positive locking mechanism, made of durable 6061 T6 aluminum matte anodized finish
  • Shockproof optic with ruggedized rubber shrouding, built to withstand recoil of any weapon, including shotguns and large-caliber rifles
  • Scratch-resistant optical coating
  • Backed by the AT3 Lifetime Warranty

Important fit note:

Designed for use with “absolute cowitness” red dot sights, like the AT3 RD-50 with .83” riser. When the Spacer is used this may be used with the AT3 LEOS. Can be used with taller sights, but the magnifier body will sit slightly lower than the red dot body.


  • Magnification: 3x
  • Objective Lens Diameter: 26mm
  • Mount Height: 1.4in from the base center of optic (Absolute Cowitness)
  • Eye Relief: 2.4in
  • Exit Pupil: 7.0mm
  • Field of View: 49 ft @ 100 yds
  • Length: 4.2in
  • Weight: 11.6oz with mount
  • Optics Coating: Fully multi-coated
  • Material – 6061 T6 anodized aluminum body on magnifier and mount
  • Included in the box: Flip to side mount, 3X magnifier, Hex key, Lens Cleaning Cloth,Spacer, and Longer Screws

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Customer Reviews

Based on 4 reviews

Opened the box, and it looked brand new! Awesome product! Well designed and rugged! Thanks AT3!

Thanks for sharing your feedback, Jesse. We're glad you're satisfied with your purchase. Cheers!
Open box magnifier

I love it for 60$ you can't beat the quality of the product

Richard, thank you for the great review! We’re so happy you liked the product. We count ourselves lucky for customers like you. Cheers! - AB
Good magnifier

Good magnifier and flip to the side mount

Thank you for the feedback, Stephen. We're glad you're satisfied with your new magnifier! -- LM
Very Pleased

I was a little hesitant about buying an open box item such as this but the magnifier was in like new condition and works great. The magnifier itself is very well designed and constructed. I had a few questions about adjusting the mount which were answered very quickly by AT3 support. The magnifier sits behind an RD-50 which I am equally pleased with.