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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 223 reviews
              Great product for the price

              I was looking for a good reliable sight for a good price and the RD50 pro met and exceeded my expectations. Even on bright sunny days you can see the dot good and was easy to sight in. I really like the high rider mount for the sight. Super easy to install and couldn’t be happier with the product.

              We work hard to meet expectations like yours, and we’re happy to hear we hit the mark for you, Charles. Cheers! - AB
              Ok for the $$

              Holds zero fine on my 5.56 dot could be more crisp but well built for the $$ wish i went with the leos instead.

              Gene, thank you for the review. We will appreciate if you can tell us more about the issue with the red dot. Please send us an email at support@at3tactical.com to communicate further. - AB
              Excellent product

              I purchased the AT3 sight for my M&P AR-15 22 Sport rifle. The sight was just about right on (minor tweak to elevation). I see the red dot on the power 1 setting but power 2 is just right for me even in bright sunny daylight, to my surprise. Excellent clarity & visually comfortable for my old eyes. I'm very happy with the purchase of this fine product It also has maintained zero after about 50 rounds using CCI Mini Mag's and I expect that will probable not change.

              Thank you for leaving such detailed feedback, Earl! We're glad to hear you're enjoying your new red dot. -- LM
              probably as good as my vortex sparc ar

              bright and crisp dot-i was continually turning the brightness down at an indoor range even with sunglasses on its plenty bright enough for an outside bright sunshiny day and the dot stays pretty crisp even on the highest brightness setting

              clear glass-looking through it with the red dot turned off youll swear theres no glass in it its that crystal clear

              zeroed easily-at 26 yard indoor range shooting 3 shot strings it was zeroed in about 12-15 rounds and held that zero for the next 40 or so rounds

              accurate-was able to obtain the same size groups with this red dot as my vortex sparc ar at the same distance using the same ammo and the same 10.5 ar pistol chambered in 5.56

              elevation and windage controls-the caps on this red dot dont have slots on them that function as an adjustment tool like the vortex sparc ar but they are very nice and very positive and have the proverbial "audible and tactile click" the clicks on the vortex arent quite this nice

              the only reason im only giving this 4 stars is because at this point ive only got maybe 50 rounds through it if i put another 150 rounds through it and the zero doesnt move ill come back and give it 5 stars

              for the $ this rd-50 is every bit as good as my vortex sparc ar red dot which was double the price

              im probably going to build another 10.5 ar pistol (in .300 blackout this time) and if i do ill definitely put this red dot on it

              thanks at3 tactical for making an affordable quality red dot optic for those of us that cant afford or who can afford but cannot justify the expense of an aimpoint eotech or trijicon

              We really appreciate you taking the time out to share your experience with us. Please let us know how it goes after shooting 150 rounds, we'd love to hear it. - AB
              Red Dot

              Built tough,sighted in easy hitting 1 to 3 inch moa at 100 yards. Good company.

              It's our pleasure doing business with you, Ronald! Glad you liked your new RD-50. thanks for the feedback! -- LM