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    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.

    Click Here for the RD-50 Pro, with included Riser Mount and Protective Rubber Armor!


    • 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 260 reviews
              Really nice sight

              The sight was smaller than expected, but comparable to others. The dot was clear and the optics did not distort anything. The controls were easy to work and the sight adjustment clicks were crisp. The sight held zero the entire day, shooting full auto (9mm) on a Sterling SMG. There were no times that the dot flickered or varied in intensity. I was pleased with the 0.83 inch riser mount. The rail screw does not clear much over the rail, so I was able to use my iron sights by looking through the rail.
              Only one problem, the sight mounting base has 2 springs that hold the picatinny fastener. I must have bent one of the springs while mounting - had to remove it. However, this only seems to be added to maintain control of the rail fastener - not for holding zero. Would like to know the size of the springs for replacement.
              Good sight for the money - solid performance.

              Thanks for sharing your experience, Richard. We can send you an extra mounting hardware please get in touch with us through email - AB
              AT3 RD50

              Best little red dot for the money and fast shipping!! this is my third one!!!

              Thanks for choosing AT3, Mark. We work hard to meet expectations like yours, we're glad we hit the mark for you. Cheers! - AB
              RD50 red dot and 3x magnifier

              Great products for the pice.

              Thanks for sharing your feedback, Frederick. We're glad you're satisfied with your purchase - AB
              The sight for a pistol

              This sight works great on my built pistol. Just wish the rain coat covers were easier to secure

              Thanks for sharing your experience, Peter. Your comments were noted, we'll continue working hard. - AB
              Christmas Present

              Cannot review on the operational merits of the sight because it was purchased as a Christmas present for my grandson. However, company service and correspondence was exceptional.

              Thanks for sharing your experience, Charles. We work hard to meet expectations like yours, we're glad we hit the mark for you. - AB