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Swampfox

Swampfox Kingslayer Pistol Cut RMR Foot Print 1x22 Micro Reflex Dot Sights 3 MOA

  • Based on 595 reviews
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$154.99 Why this price?
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Style: Red Dot


Features

  • Choose from 3 MOA dot, red circle dot, or green circle dot reticles
  • RMR footprint scope base for maximum compatibility with pistol slides and included low picatinny mount
  • Uses CR1632 battery, Change via side tray with no optic re-zero needed with Auto shut off after 4 hours with no movement (UP button to wake)
  • 13 illumination settings to match your needs
  • Weighs only 1 oz in pistol configuration, 1.3 oz with rifle or gun mount. Dimensions 1.8L 1 W and 1.4 H (using the long gun mount)

Description

Kingslayer is a super compact open reflex dot sight allowing a quick acquisition of a sight picture with both eyes open. For pistol slide platforms, remove the included 1913 Picatinny mount and use the RMR-compatible footprint underneath. With the Picatinny mount installed, Kingslayer works great on rifle and other applications. Kingslayer is waterproof, fog resistant and features a scratch resistant, anti-glare lens multicoating. Built like a tank, Kingslayer will maintain its zero on reciprocating pistol slides, 12 gauge guns and even .308 battle rifles. Choose from 3 MOA red dot, red circle dot, or green circle dot reticles.

Brand: Swampfox


Color: Matte Black


Style: Red Dot


Product Dimensions: 1.8"L x 1"W x 1.4"H


Sport: Airsoft


Item Weight: 7.7 Ounces


Material: Aluminum


Magnification Maximum: 1 x


Objective Lens Diameter: 22 Millimeters


Magnification Minimum: 1 x


Brand: ‎Swampfox


Color: ‎Matte Black


Style: ‎Red Dot


Product Dimensions: ‎1.8"L x 1"W x 1.4"H


Sport: ‎Airsoft


Item Weight: ‎7.7 Ounces


Material: ‎Aluminum


Magnification Maximum: ‎1 x


Objective Lens Diameter: ‎22 Millimeters


Magnification Minimum: ‎1 x


Compatible Devices: ‎Handgun, Rifle


Mounting Type: ‎Picatinny Mount


Night vision: ‎No


Field Of View: ‎0.25 Feet


Model Name: ‎OKS00122-2


Manufacturer: ‎Swampfox Tactical Optics


Reticle Type: ‎3 MOA dot


Item Package Dimensions L x W x H: ‎5 x 3.82 x 3.39 inches


Package Weight: ‎0.27 Kilograms


Item Dimensions LxWxH: ‎5 x 3.75 x 3.25 inches


Brand Name: ‎Swampfox


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Part Number: ‎OKS00122-2


Date First Available: October 10, 2019


Frequently asked questions

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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great sight for the money
Style: Red Dot
I'm giving this product a 5-star review even though I returned it. The problem really wasn't with the scope per se, but with my vision. I was brand new to red dot scopes and didn't really know what to expect. I'm 73 and I learned that I have enough astigmatism to cause the dot to "star out", basically obscuring my target at more than about 15 yards. 25 yard shots were impossible for me. (So I'm going back to a traditional scope with a reticle and 2X magnification.) But for someone with better vision (i.e., minimal astigmatism), this scope is great. The build is very good. It feels very solid made from quality materials. The glass is clean and fairly crisp. (Mind you, I never used a more expensive red dot, so can't compare -- but it's good.) The dot is as bright as one could want it, and of course can be dialed down quite low. The sight is quite small and light weight, and fit very solidly on my red dot mount. (I used a Tandemkross Shadow Mount on my Ruger Mark IV 22/45.) Add that Swampfox customer service is top notch, both presale (I called with several questions before purchase, and they addressed them all with patience, kindness and a sense of humor) and post sale. There were only three minor problems that I shared with them, none of which were "deal breakers", and not contributors to my return. First, the brightness steps between illumination levels were very consistent, except the one that really mattered most: the step down from "visible in late afternoon light just before sundown" to one step below that where my astigmatism basically disappeared that one step was just too much diminution in brightness, going from a fairly bright dot to one I could barely see. It wasn't half dimmed, but more like 1/4th. Second, the elevation and windage adjustments were not tactile clicks. I didn't need audible clicks, but hoped for tactile clicks when I adjusted "one click". There just wasn't anything there that I could feel. I had to use visual position of the adjustment screw slot -- which is challenging for older eyes since they are recessed into the body and hard to see without good light. Third, and maybe worse, the adjustment for the elevation was too tight, and for windage way too easy. The tiniest movement would overshoot the "click". Again, none of those three issues were deal breakers for me. Just annoyances. Overall, this is a really fine red dot, especially for the money, and I fully recommend it. ... show more
Reviewed in the United States on October 28, 2023 by Alder Stone
    • Excellent sight and a great value.
Style: Red Circle Dot
This RMR footprint makes it compatible with a wide range of pistols, and the 1x22 configuration offers a clear sight picture. The 1x22 configuration provides a clear, unobstructed view of the target. This sight offers solid performance and features, making it a worthwhile addition to any pistol setup. This Kingslayer offers excellent value for the price. It was easy to mount, easy to use and looks great. I could not be happier with my purchase. ... show more
Reviewed in the United States on October 11, 2024 by Chris
    • Great reddot. Held up for years uner lots of use and abuse
Style: Red Dot
No problems with it so far had mine for years now and has been through lots of abuse and still works great.
Reviewed in the United States on July 22, 2025 by jackovknight
    • Super Easy to Use & Amazing Value
Style: Green Circle Dot
Super easy to mount on a rmr cut optic slide. I attached my green circle dot kingslayer to a tisas px-9, the kingslayer was a quarter mm too large and i had to use a mallet to get the optic flush with the slide cut out. No damage to optic. This is a great entry level optic for someone looking for a self defense optic. The circle is amazing, in a self defense situation put the circle over the target and you will get shots within the circle. The brightness settings are very bright. The dot on the green circle dot is an amber color, or at least thats what my eye sees. Pros: the green circle dot optic comes already pre-zeroed, i had to make only very minor adjustments. Once it's zeroed in, it's hard to miss. If you don't absolutely want a circle dot, I recommend you look at other low cost red dots that have shake awake. I think there's better value going that route. going from iron sights, it's going to take a lot of reps for me to be able to consistently bring the sight up to eye level. ... show more
Reviewed in the United States on February 11, 2023 by R. Carter
    • My go to RD sight.
Style: Red Dot
Married perfect to glock 17 with dovetail RMR mount. Hundreds of rounds later still dead on
Reviewed in the United States on December 20, 2025 by Harrison
    • Hindsight.
Style: Red Dot
I have mounted a Swampfox Kingslayer onto my Optics Ready M&P9 M2.0 4.25". I used the plate and screws that came with the pistol. After less than 100 rounds the optic flew off. I then used the screws that came with the optic. I paid the gunsmith at my range to mount them so I knew it was professionally done. About 100 rounds later it flew off again. I purchased screws from another company and used blue loctite. The screws I used before had the blue loctite on them, but this time I wanted to do it myself. About 50 rounds later it popped off. The nubs from the plastic S&W plate broke off into the optic's corresponding cutouts. I had to use my dremel to remove them. I purchased a steel adapter plate to replace the plastic one S&W provided. Finally, I used another set of screws and this time used the RED loctite. This is supposed to be "permanent". Yesterday after rezeroing the optic and firing 30 rounds, the optic was already wiggling. I had a friend on the range who let me use his torque wrench to ensure that the screws were at the right poundage. 100 rounds later, the optic is wiggling around again. At this point I don't know if it's the screws, the optic, or the weapon. I have friends whose optics are so secure they constantly use them to rack their slide. In addition to this mounting issue, every time I fire about 50 rounds, the dot moves right or up or both right and up. Every. Time. At this point, between the screws, the new plate, and the service charge for mounting the optic, I have spent nearly enough to get a Holosun. Hindsight, my friends. UPDATE: I reached out to Swampfox and S&W. S&W blamed the screws. Swampfox tried to help, then never replied. I got a screw kit from Swampfox directly and used the ones for my optic to slide. Same outcome, the optic flew off after less than 100 rounds. Also, the zero would not hold. At this point I have given up on Swampfox. I will not be wasting my money again on them. ... show more
Reviewed in the United States on January 12, 2023 by Yeheskel
    • Incorrect battery…
Style: Red Dot
Fits perfect, easy install. Only issue is that it was packaged with the wrong sized battery…. Hopefully no issues one I get the right battery.
Reviewed in the United States on September 8, 2025 by J. Jackson

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