Good morning everyone, hope you’re all having a wonderful day today. Today we’re gonna be talking about the Holosun 407K.
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Holosun HS407K X2 Red 6 MOA Dot Open Reflex Sight
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Full disclosure on the Holosun 407K, I have absolutely no relationship with Holosun whatsoever, I contacted their customer service a couple of times but that is about it and I paid my own money for this optic. I paid a dealer or wholesale price for it so I did not pay full retail price for it, but I have no contact with the manufacturer, again, I threw a third-party wholesale website where I purchased the 407K.
Getting into specifics on the 407K as you can see I have it mounted here to mechanic METE SFT, this is cut for the smaller footprint of optics so not the full RMR cut and the 407K versions, the K version of both 407, the 507, 508 I believe as well. Those optics are the smaller footprints, they are slightly smaller than your 507Cs or your 407Cs as you can probably tell. They have a slight bit of difference, maybe like 10 to 15 percent in the window, but they do fit on the smaller optic cuts, I believe the optic cut itself is Shield RMR or the RMR CC, I believe I could be wrong about that but generally speaking these would fit your smaller compacts, micro compacts and stuff like that that are cut for an optic.
The 407K is the single reticle version. The 500 series generally has two reticle choices, either the 2MOA dot or the 32 MOA circle. This one here has a single reticle choice, this is the red six MOA dot which for a concealed carry size red dot, although this really isn’t a concealed carry size red dot, this is only slightly smaller than like a full size red dot which is quite nice and you get a lot of performance in this small package. The weight on this guy comes in at right at 1 ounce, 1.1 ounces I believe and the material here is a very quality 7075 which is a lot nicer than the 6061, it’s about twice as strong as 6061 and a lot stronger than some of the magnesium optics floating around as well, certainly a lot stronger than the polymer optics as well.
On top of that the 407K does still retain a side loading battery which I believe it uses the smaller 1632 battery which is still rated at a battery life of 50 000 hours on setting six. Usually you’re gonna be a little higher than setting six, but It’s still going to provide you very good battery life. On top of that they do have their auto-on, auto-off technology so for all intents and purposes, now unless you carry this every single day this battery is going to last you as long as that battery can actually hold charge unless you actually carry it every day at which point you’re probably going to be like 20 to 30 000 hours of carrying and use time. The auto-on, auto-off is really good if you look at it from the front while it’s at rest for, you know, however long it takes whether that’s two, five or ten minutes, I forget exactly how long it is before it shuts off, but you can tell that it’s off and ten as soon as you touch the gun and it feels any sort of vibration whatsoever it automatically turns back on.
As far as controls go on the 407K X2, you have a plus button and a minus button fairly intuitive there and they, of course, adjust your brightness up or down. The red dot gets more than bright enough, in full-on daylight conditions gets way more than bright enough so you can settle down one or two clicks depending on your preference and it also gets dim enough to be used in mixed lighting conditions without blowing everything off.
For our windage and elevation we have these really, really tiny turrets, they’re like micro-sized turrets. You basically need something a very, very small flat-head to get in there and adjust it which is still better than some of those micro Allan keys that some optics are shipping with because in theory you could maybe get like a fingernail or a tip of a bullet in there to turn it just a little bit if you had to do something out on the field and you didn’t have a tool on you but they are still a little bit annoying to use and they are, if they have tactile feels, it’s the least tactile feeling adjustment on the market but at this point in the review we have several hundred rounds of live fire plus, of course, a lot of dry fire racking off the optic almost exclusively as well as carrying this optic quite a bit, not quite EDC but I do carry this gun every now and again depending on what I am doing and I not had any issues with point of impact shift, taking shots at longer ranges has not been a problem whatsoever so while the adjustments might be a little bit annoying they are definitely kind of a set and forget it.
Talking about mounting this to the SFT for a brief moment, the SFT is cut for the micro-style red dots, it’s cut for like three or four different footprints that are still in that smaller form factor but it’s still gonna take any of your bigger, larger red dots like a full RMR cut. Now, they also ship with plastic adapter plates which fit perfectly into the slide cut so with the 407K I have it in one of the plastic shoes that has pegs that go both into the optic body as well as into the slide itself and then it perfectly sandwiches it forward and back within the optic cut itself so while it is a polymer adapter plate it still has worked perfectly fine up to this point and again the main benefit of having these adapter-style plates is that it perfectly fits it forward and back to the actual cut on the gun so in theory it’s taking a lot of that pressure off of your screws. Now, the screws themselves, I believe I have these torqued down to 20-inch pounds, I believe the manufacturer recommend like 18 or so, but on these I’m at 20-inch pounds with a blue locktite and I haven’t had any issues whatsoever. The nice thing about this optic cut on the Canik itself is that is very low into the gun.
The Holosun 407K has a rear notch that could in theory co-witness with a front sight depending on the slide, front sight cut, all that sort of stuff, but with the Canik METE SFT the standard height sights are more than tall enough to have a very good co-witness in the lower part of the glass and so you really don’t need that but it is a nice feature to have on your micro-style guns especially on some guns where putting on an optic will actually delete the rear sight.
Quickly bringing back the size comparison between the 507C and the 407K, again the C models are going to be the bigger, full size, kind of RMR footprint of optics. It’s about a quarter inch taller and a quarter inch wider which means that you do get more glass so you do get more of that image, of course, that you can actually see and you have a small window on here.
In real world use if you are used to shooting red dots, it’s not that big of a difference and honestly, I felt like, even though it was a smaller window, it is a smaller optic, it still gives you 90, 95% of the performance of a larger red dot. The difference would be if you had this on a very small, very snappy gun that red dot would often times be going out of the window just because the window is shorter than the 507Cs or like Trijicon SRO or something like that that has a really tall window, it is a lot smaller that that, but on a big gun like this that does not recoil all that much, it is very easy to track that up and down even in a smaller window.
So, personally, between the 507C and the 407K the actual real world performance in like quick speed shooting is very, very similar.
Another advantage that I noticed about the six MOA dot because, again, this is the six MOA dot only version, normally I shoot two of my dots on rifles and such like that, they’re either two or three MOA dots, you know most dots aren’t quite perfectly concentric but on the six MOA dot I was thinking I was gonna be a little bit big but something that I did find is that wallet is large, it’s not imprecise by any means and you could certainly take shots with this, with man-sized targets out to probably 200 yards, if you had the skills to back that up, of course but even at say 100 yards or much closer I found that it was a good blend of speed and accuracy, you can still put shots exactly where you want them and only in the most blown out of conditions where you have the red dot just way to high for your environment would it really become an issue in terms of its size.
Another side benefit of that if I came from the inside and then was outside doing something and just did a play draw or so, even if I had it set three or four setting too low because the dot is so much bigger than your standard two MOA dot in terms of actual surface area on your glass, I found that even at way low brightness levels it was still visible just because of how large it was.
Six MOA is still not huge but, again, in comparison to two MOA dot it’s about what nine times the surface area or so if my math is correct on that so I find that it was more forgiving I lower, coming from lower lighting situation on a lower setting, going in into a brighter environment even if I had the dot set much lower than I needed it to be or would prefer it to be I was still able to pick it up just fine and now from what I heard from people who are actually good at shooting handguns, actual competition shooters, most of them prefer a larger dot somewhere between that five, six and even eight MOA in some case. The reason for that is handguns are more of a close range tool, sure you can still take shots to 100, 200 yards, should you have the skills to back that up, of course, but the dot size really isn’t going to hold you back even at those extended distances for handguns but it is going to provide you a benefit in speed dot acquisition up close.
Most people who shoot very, very fast with handguns prefer having a larger dot and for me personally while I was shooting this I did not mind it whatsoever, I thought that the dot size was very appropriate, at good brightness levels even if it’s one or two clicks higher than it absolutely needs to be, it’s still very precise and very easy to take shots at longer range and the more that I shoot around with two MOA dot and 32 MOA circle on the 507C the more I kind of think that’s the worst of both worlds, yes it has more precise center dot but then you have 32 MOA outer ring that makes it really busy and at close ranges kind of obscure an entire target or so and can make it a little bit more difficult to tell exactly where you’re shooting at. I think it’s good for rifles and other things like that, but for pistol shooting I really wasn’t a huge fan of the 32 MOA outer circle and honestly kind of prefer just these very simple six MOA dot.
If you’re a fan of very precise dots you could, of course, just turn off 32 MOA circle because, of course, you can adjust the reticle on the 500 series and just run the two MOA dot and you would have a very fine, very crisp dot, should you want to run only the two MOA dots so you have options with that but for me personally I think simple is a little bit better and if I don’t have to mess with anything a six MOA dot works very, very well for me.
We’ve already talked about it, but the body is made out of 7075 aluminum, which is a stronger material, it’s about twice as strong as 6061 in most use cases. There’s a lot of applications where that may not be exactly true, but it is a substantial increase in performance in terms of strength versus 6061. On top of that, having a smaller, more micro-style design will allow it to utilize that strength better versus a much larger because, of course, as you make aluminum longer and proportionally thinner and weaker, which is why you’ll see a lot really long rails, they’ll have issues with bending if they take a sharp impact because longer and longer you get it the more leverage you’re giving other things to act upon it and bad things can start to happen.
They did not skimp out on the material on the 407K. The walls are very, very thick, both of your side walls and they’re very long and kind of angled down towards the back, but the roof of the optic it is flat, we would like to see posts, but Trijicon wouldn’t like that very much, now, would they, but the roof of the optic itself is also very, very strong, it is a thick chunk of metal and from what I’ve seen in actual durability testing on these optics they perform very, very well and can handle some very serious abuse.
The last thing to really talk about on the optic is the glass and the glass is something that I’m gonna knock it for a little bit, not in the fact that the glass is bad, the glass is actually just fine, it has a little bit of that blue-green tint that is common in these sort of Holosun pistol-sized optics, it works perfectly fine, it’s very crisp. The dot, again, does show up good and the emitter is quite good as well as we’ve already talked about, but the one issue, the slight issue that I have with the glass, is it has a noticeable 1.1, 1.2 magnification, especially if you’re talking shots at longer range and you bring this up, there’s a slight warping, it’s not a true 1X image that you’re seeing. Part of that is due to the fact that it is a piece of curved glass, it’s also a very thick piece of curved glass kind of like you putting, you know, glasses in front of your face, almost how it has that warping effect, the same thing happens with this glass so you do have a slight warping effect, not a big deal for me personally but it is just something to note that there are flatter, more true looking optics than the 407K, the 507K, so on and so forth.
Not that is bad, not that is unusable, but it is just something to note and for some people might bug them a little bit more, again, for me it didn’t really bug me at all, it was just something that I noticed and at best a minor inconvenience.
Overall I am really impressed with the performance of the 407K, yeah, it is a little bit smaller than your full-sized RMR styled optics, it is gonna be 10 to 15% smaller than your 507Cs, your 407Cs, so on and so forth, but you’re really not giving up all that much performance, especially in a package like this on the METE SFT which is a very soft shooting handgun, I mean you’re still getting 90 to 95% of the performance that you would out of the larger style optics and another advantage of the 407K, the K version of their optics, is they’re also usually quite a bit cheaper. You can find these on the street for under 200 bucks for a very tough red dot with auto-on, auto-off, a crisp dot, good glass, has a little bit of warping but good glass an exceptional battery life. So, if you’re looking for a dot for a micro or compact gun and it takes the 407K footprint you’re gonna have a good time with it, you know, if you don’t need the extra reticles, you don’t need the extra features of the bigger red dots, I think that this sort of optic goes a long way, it’s very easy to use, it’s very easy to pick up.
If you’re new to red dots it might be a little bit harder for you at first because it does, again, have a smaller window but I’m sure it’s nothing that can’t be trained out with a few dry fire reps.
Overall, for the money because, you can find these for under 200 buck for a very high quality, very durable optic to fit on your smaller handguns, I think it is an excellent deal.
