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AT3 RD-50™ Micro Red Dot Reflex Sight

AT3 RD-50™ Micro Red Dot Reflex Sight

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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.

Buy on Amazon AT3 RD-50™ Micro Red Dot Reflex Sight w/ Optional Riser Mount

Accurate. Dependable. Unbeatable Value in a Small Package.


Featuring a crisp 2 MOA red dot reticle, waterproof housing with shockproof internals, and weighting in at only 3.6 ounces, the AT3 RD-50 Red Dot sight is optimized for the AR platform, but also ideal for shotguns, handguns, hunting rifles, and any other weapon with a Picatinny or Weaver rail system.


  • Crisp 2 MOA red dot allows for accurate, both-eyes-open shooting.
  • Parallax free design: The red dot stays on target with following the movement of the user’s eye.
  • 11 red dot brightness settings provide optimal visibility in any light conditions.
  • Multi-coated, scratch resistant amber lens provides enhanced image clarity.


  • Fully waterproof, with rubber gaskets on turrets and battery cover.
  • Nitrogen filled 6061 T6 aluminum body resists fogging and moisture.
  • Matte black anodized finish resists scratches while keeping a stealthy profile.
  • Shockproof circuitry resists damage from rough handling.

Unbeatable Value

  • Exceptional battery life – up to 50,000 hours at the lowest brightness setting.
  • Genuine Renata™ CR2032 Lithium battery included.
  • Factory direct pricing – no distributor markup.
  • Backed by the Lifetime AT3 Warranty. We stand behind our products!

Inside of the box:

  • Red dot sight
  • Rubber bikini cover
  • Instruction sheet
  • Lens cloth
  • Allen wrench

Red Dot Sight Technical Specs

  • Power / Obj. Lens: 1x25mm
  • Reticle: 2 MOA Red Dot
  • Lens Coating: Multi-coated
  • Weight: 3.6 oz
  • Mounting Length: 1.1 inch / 28 mm
  • Total Length: 2.4 in / 61.8 mm
  • Exit Pupil: 22mm
  • Battery Type: CR2032 (Renata™ CR2032 Battery Included)
  • Battery life: up to 50,000 hours on lowest setting. Approx. 5,000 hour with typical use
  • Windage/Elevation Click Value: 1 MOA per click
  • Adj Range: +/- 35 MOA (total adjustment range 70 MOA)
  • Eye Relief: Unlimited
  • Parallax Adjustment: Fixed
  • Field of View: Unlimited
  • Night Vision Compatible: No
  • Nitrogen filled: Yes
  • Waterproof/Fogproof: Yes
  • Recoil resistance – Certified up to 500g’s. Certified for use with large-caliber rifles and shotguns, as well as “springer” airguns with 2-way recoil
  • Body material: 6061 Aluminum
  • Finish: Matte black anodized

Frequently Asked Questions

Q: Do I need to use iron sights along with with the RD-50 Red Dot Sight?
A: NO – Iron sights are not required to use this red dot sight! The red dot sight can be used on its own. Many people choose to use iron sights as a backup, but they are optional. This red dot sight will work great on “optics ready” rifles that don’t have any iron sights.

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Customer Reviews

Based on 305 reviews
Awesome Micro Red Dot

This is the second RD50 I've purchased. The component materials seem to be of acceptable quality and the workmanship and finish are excellent. No modifications or "tweaks" required to mount the red dot to the riser and riser to the top rail on my SBR 9mm AR. Easy to zero and no issues with it not holding position. The "armor" seems to fit a bit loose but getting the armor as part of the package wasn't even a factor in purchasing the RD-50 Pro. Shipping was awesome as usual. As mentioned at the start, this is my second RD-50; I'd purchase this product again without reservations should I need another red dot at some point in the future.

The most optics for the money

I recently purchased three AT3 red dots. i have since mouhted two. one on a Ruger blackhawk, 357 mag and one on my 3-gun AR as a 45 degree angke back up for close shots. It sits just to the right front of my scope. I swnt some pics in. I put 100 rds. through the 357 and not one problem. The recoil on a 357 mag is sharp and has short tall spike in energy transfer. if anything could make this optic fail it would be that cal. I ran my show gun with 5.56 62grn green tips. I guess approx. 500 rds. no problems with zero. I am about to purchase several more for other AR platforms includibg SBR's and pistols with binary triggers. I will report how the AT3 handles
near full auto 60rd drum mags. I have no doupt through many majy years of gunning.. the AT3 red dot is the most optics you can get for the money. Gary in NH

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

Mounted on a Mossberg 930SPX--co-witness with the GRS. Very well made. Will probably buy another. Love it.

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

Bought this months ago. I zeroed this red dot and put about 500 rounds of 7.62x39 out of 7.5" AR. It is still zeroed. It gets tossed around and banged into inside my vehicle, Not a single flaw. I dont bother with the rubber armor it came with because I simply don't care enough, but the optic also doesn't seem to care. Absolutely worth the money!

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

Great value. Solid construction. Zeroed well. Red dot is not is not a clear circle. Glass seems chipped on one side. Just shot it once. I will return this one and try again.

Sorry to hear about the issue, Christopher. Please reach out to us so we can further assist.

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