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    Returned items may be scuffed or scratched, packaging may be damaged. Guaranteed functional

    Accurate. Dependable. Unbeatable Value in a Small Package.

    Only 3.6 ounces and 2.4 inches long, the AT3 RD-50 Red Dot sight is specifically optimized for the AR platform, but also ideal for shotguns, handguns, hunting rifles, and any other weapon with a picatinny rail.


    • 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 AT3 Lifetime 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

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              Customer Reviews

              Based on 25 reviews
              Great Sight For the Price

              I have this mounted on my Bushmaster with a fixed A2 rear sight/carry handle. I added the picatinny rail and tried other sights I already had but they all sat way too high. This sight sits about as low as possible which is perfect for my setup. The sight itself for the price seems to be incredibly well made, I would compare it to a lower end Trijicon MRO (minus NV Capability) but for $60 instead of $500. I would highly recommend this sight for a budget shooter or someone looking for an inexpensive red dot.

              Looks great! Thanks for sharing your experience, Patrick! We work hard to meet expectations like yours, we're glad we hit the mark for you. Cheers! - AB
              Tough sight at a good price.

              Ordered this sight to go on my AK platform. Used sight with gastube rail. I was very impressed with ability of sight to withstand heat. I shot about 400 rds. on a 90 degree day. As most know, Aks get HOTT. Needless to say, gastube and sight were as hot as the sun. Red dot held up and maintained zero after being zeroed. This sight works well with an AK gastube rail such as my Ultimak to give user cowitness with iron sights. Nice bonus to this red dot. My only issue was that the battery cap came a little loose as I turned brightness dial. The dot shut off when the cap got too loose. Not really an issue if you're aware when adjusting brightness. But, would be even better with a battery cap that would not come loose somehow. Just a suggestion. Otherwise an awesome little sight. I am very glad I bought it and look forward to using it more in the future. Time will tell as to longevity, but I am very optimistic. Dot was very visible in bright sunshine as well. I really feel this sight brought out more potential in my rifle. After being zeroed, I was making accurate hits on a torso sized metal target at about 110 - 120 yards in standing freehanded and squating freehanded positions. I will not abuse this sight, but I am very curious as to how it would hold up to drops etc. Great product at a great price with a lifetime warranty. Open box product was flawless and indistinguishable from new. Cant really lose.

              Thank you for sharing your experience with us, Jordan. We're glad you're satisfied with the RD-50. We work hard to meet expectations like yours and we're happy we hit the mark for you. -AB
              First Red Dot

              This being my first red dot, I was happy with the timley delivery. Mpumted it on my ar an in less than 8 rounds had it zeroed at the distance I wanted. It neatly packaged an had everything in the box as stated.

              Glad you're happy with your new RD-50! Thanks for your feedback, Calvin. -- LM
              SUPER PLEASED!!

              Bought this for a sub 2000.. it was easy to zero after bore sighting.. mounted on a 45 degree m lok.. i love it and will be buying a couple more!!!

              We try our best to provide products that are cheap in price, but not in quality. We appreciate your feedback, Robert! -- LM
              at3 rd-50

              I have several red dot sights but the light weight and micro size of the at3 rd-50 is what I like I bought one new and two open box specials which both look like new. Owning three would say how much I like them and I have never seen such fast shipping !!!! Last one I put on a kel Tec cmr-30 with a .83 riser works great.

              Thank you for trusting AT3, Calvin! We appreciate your feedback. We really do our best to deliver not only quality products, but quality experience as well. -- LM