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Your cart is empty.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.
Steve
Reviewed in the United States on March 26, 2025
i’ve had two of these that i put through absolute hell and they both have held zero and worked flawlessly. i have had great luck with mine. can’t speak for others but id definitely buy another if needed
BlazerX
Reviewed in the United States on January 9, 2025
Love the green double reticle. This on my .22 BuckMark Contour. So Nice! Zero problems and highly recommended.
George
Reviewed in the United States on December 24, 2024
At first, I was skeptical because of the price and I wasn’t sure of the brand.The moment I took it out of the packaging I knew it was very well built. Once I got the site mounted and seeing how clean and crisp optic was, I couldn’t have been more happy. The first time I shot it. It was spot on, and I do not regret the decision at all would absolutely buy again.
Chris
Reviewed in the United States on October 11, 2024
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.
Cpt.Awsme
Reviewed in the United States on March 30, 2023
Optic fits an RMR cut. 10 levels of brightness with a crisp target. I do enjoy the crosshairs reticle. Easy to zero in. The only thing I didn't like was the battery port on the side. It sticks out a little on the side of the housing which may rub over time. If I had to choose I would definitely choose this optic over the Vortex Viper or Venom. So far it's one of the better options I have tested. For the price point it's probably the best value of all the optics I have tested.
Alder Stone
Reviewed in the United States on October 28, 2023
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.
Yeheskel
Reviewed in the United States on January 12, 2023
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.
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