AT3 RD-50™ Micro Red Dot Reflex Sight

Click Here for Price
Out of Stock
Orders will Ship within 1 Business Day

2-Pack Magpul PMAG 30 Rd M2 MOE Magazine


AT3 Tactical Sticker Pack - 3 New Designs - High Quality

AT3 Sticker Pack - 3 Stickers


Accurate. Dependable. Unbeatable Value in a Small Package.

Featuring a crisp 2 MOA red dot reticle, waterproof housing with shockproof internals, and weighing 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.

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



  • 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.
  • CR2032 Lithium battery included.
  • Factory-direct pricing – no distributor markup.
  • Backed by the Lifetime AT3 Warranty. We stand behind our products!

Inside the box:

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

Red Dot Sight Technical Specs

  • Power / Obj. Lens: 1x23mm
  • 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 (Battery Included)
  • Battery life: up to 50,000 hours on the 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 or Flat Dark Earth Coating

Frequently Asked Questions

Q: Do I need to use iron sights along 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.

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 680 reviews
Affordable, rugged, simple

Can’t beat it for the price and I love the compact yet rugged sight.

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

Lee Meza
I own multiple of these

I bought my first RD50 after watching a YouTube review with a guy torture testing a rifle with one on it. In that video, no matter how bad he treated the gun, his RD50 held zero and kept functioning flawlessly. I have since purchased 2 more, a pistol reflex sight from AT3 and am considering another RD50. In my opinion this is the best product of its type in its price range. Hands down.

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

Pete Foote
Micro red dot

Neat little red dot. Small compact well made. Lines up perfectly with the Magpul mbus sights. Perfect for a minimalist like myself. Just want a dot and nothing else.

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

Best all around

Not only is AT3 an amazing company but this red dot can’t be beat for the value. Not ridiculously over priced and worth every penny. I’ve bought several and have yet to have any issues. Dot is crisp and clear and the battery life is great. I leave mine on at 1 so it is ready for unwanted night visitors. Battery lasts for months. Dropped plenty at the range with no drama. Holds zero and works great.

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

Dave G
Excellent Red Dot

I wish I had bought this red dot sooner. Form and function, it can run with my Trijicon all day and night.
The RD-50 by itself is very low profile without a riser, no problem though.
As can be seen the photo, the center of the RD-50 sits about 3/8" lower than the Trijicon.
I wanted another RDS but didn't want to fork over another $500.00, saw this and decided to give it a try.
Pros: Shipping was fast. I could track the package. Packaging was excellent. Mounting was quick and easy. Installing battery, no problems. This little red dot is well made. Didn't break the bank. Glass is clear. Dot easy to see. Brightness adjustment is acceptable.
Cons: None at the moment.
I recommend you guys quit dragging your feet and give this product a try before you go spending your kids inheritance money on something way more expensive.
I will be buying more of these.

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