These won't flip back and forth,I had to remove the pin and reinstall after putting in the flip up (deployed) position. I'm OK with them in a constantly deployed position. But other than not doing the thing their name actually is (flip-up) ,they are solid, like short side mounted bayonet lol.. but they do work fine as back up sight

I wouldn't run these if I was an operator but they work good on my rifle for quick acquisition in close. They don't lay as flat as you would want and a bit of play side to side. Very bottom of the barrel in rule world applications but perfect for larping.

Sadly I purchased these items during the winter months, I installed these on my rail the day I received them in the mail. I placed my firearm in the safe and waited for the next available range day to try them out! I always carry my firearms in a well padded soft-side case or a hard case, and there's not a scratch on either of these sights. But somehow during normal operation, the retention pin and block that the pushbutton/spring action screws into became so loose that it ended up becoming a projectile itself. I also noted that the first time I flipped the rear sight, that the smaller aperture would not stay in the locked position upon fully locked open (flipped up) sight position. The smaller aperture would rock forward and the two apertures would be canted at a 45degree angle making the rear sight worthless without manually adjusting. A small amount of quality control (i.e. a drop of thread lock on the threads and a quick functions test before mailing?) might go a long way. Customer service was pretty decent, they got back to me within 24 hours of emailing them. After a minor hiccup in communication (an error on my part) they appear to be standing behind their product and replacing the rear sight. Money well spent.

If I could sum up this product, it would be "the harbor freight of gun sights". Everyone knows that harbor freight has a bunch of garbage that's not worth buying at all, some stuff that works well after you put time in to tweaking it, and very few items that just work great. These sights fall in to the "work with some tweaking"...possibly.The good-they are solid aluminum. I assume 6061 since it filed down very easily. The rotating knob for windage on the rear sight has a great tactile feel to it with solid detents and the aperture does not wiggle, its locked no matter where you adjust it to.The bad-like almost everyone else, I had trouble securing the front and rear sights to my rail. There was wobble at first but it cinched down after backing in and out a few times. While it is tight, it is at the very edge of being so. There should be more adjustability with this. I'm going to blue loctite the bolts once finally mounted along with safety wire in case it doesn't hold. We use lock wire with all of our sensitive items on firearms at work so we dont lose our red dots, peq-15's etc. Just some peace of mind.The push buttons to flip the sights are nice and stiff so as to not accidentally deploy. Unfortunately the buttons are also very "grindy". The button is actually a bolt that goes all the way through the unit and the shaft and/or the tunnel it goes through is not finished well. This will eventually cause movement as its abrading the surfaces in there and will cause misalignment if the sights are used often. I dont plan on ever using them unless my red dots fail I need them in a pinch.The rear sight has a cutout to clear the spent casing deflector...it doesn't clear it. As you can see in the pic I did some quick filing of a little portion with my Gerber and its good to go. Also with the rear sight, the apertures I thought were well sized for me, but I'm going to lightly sand both holes to take the gloss off. It has a sheen to it that screws up sighting due to reflections..not a big dealThe ugly-both sights had a good amount of slop from side to side due to the gap between the base and the flip up portion. I didn't measure this gap at all. But the movement was not acceptable for combat situations. It would never hold the same spot after flipping or probably firing as well. I ended up taking the units apart and inserting a washer to take up the space. I sanded both washers down and test fitted them until they made the unit snug. When reinstalling the push button, I put blue loctite in the oval end "nut" to keep it all together. Not fun and very time consuming.Now the worst part. This may also make the sight completely unusable and all my time in these put to waste. The front sight post...it MOVES about .5 mm off center with the slight push of my finger. This is due to the threads not being cut perfectly. While it was a cheap buy-this is not where to cheap out with sights since the front sight post is the ONLY way to adjust elevation. The rear sight only has windage adjustments. So how to fix this? I'm not sure the method I'm going to try will work, but I'll edit this post to give the results. I plan on first taking the front sight post completely out and wrapping it generously with teflon tape and the reinstalling. I'll then test the movement as well as if it is even centered. If it looks good then I'll zero while checking after each shot if the post held its position. If this does not work I'll move to method 2.Method 2 with be removing all of the teflon tape and reassembling the unit to zero as it came from the factory. Again, I'll make sure to move the sight post back to center after every shot. Once(if) I've zeroed, I'll keep everything as is and flow some red loctite in to the threads.If neither of these methods work the only thing left is to rethread the base unit with an insert...and I'm not doing that.So this is why I call it the"Harbor Freight" of backup sights. A lot of work to make it work, only to hope that it works.I'll post results once i get the rest of my optics and bore sight laser for the most accurate results

The real question is, "Is this exclusively for Airsoft?"Airsoft guns are pretty realistic these days and parts for real firearms and Airsoft seem very interchangeable these days. A company name that has anything to do with the Ozarks has got to be "for real", right? Honestly, the company name is what suckered me into buying these budget sights.I've been a gunsmith for some years (retired gunsmith). That time has long past but still, the knowledge is still there. Keep the criticism to a minimum, but yes, any self-respecting gunsmith should know better than to install a $25 pair of iron sights on anything other than a squirt gun. Well, sometimes it's not about building fail-proof rigs for military and law enforcement. Sometimes it just about building a budget weekend plinker... or an Airsoft gun. I purchased this, not for a customer but for a new personal budget build, and $25 would qualify as a budget component.So the grits:This is actually my first time installing off-center sights, and the idea was strange at first. There is a TACTI-COOL component here, but at the same time, the truth is with modern gun-play, red dots are the popular choice for short to medium range engagement. Iron sights are considered "backup sights" in case your electronic gadgets fail. Most of the time, your electronics will not fail so you never really need your iron sights. Having them off to the side ensures you have your iron sights, and yet they are out of the way of your regular optics. At least they are not mounted on the sides like I've seen some people do. We're not Gangstas here. So hanging iron sights at a 45 degree angle has it's benefits. You just have to remember to practice this technique as well, otherwise it still won't be useful at all.I like the idea that these are aluminum, and not plastic or steel. Plastic is good for weight savings. Every little bit counts, but most of us are probably not battle-bound, especially with our own firearms. These hang off the rails quite a bit so these definitely would not last very long if they were plastic. The shock and vibrations from real ammunition would probably destroy these relatively quickly if they were plastic.Some people have mentioned the front post hangs left, or hangs right. I think that depends on how high you adjust the post. The threads on a standard front post is not that long, so the higher you set it, the more left or right it will lean. Make sure the post has enough thread engagement, and also make sure the post is pinned. The post is MIL-SPEC. I was able to install a Trijicon post in without any issues. So, as far as the front sight I received, there isn't any issues with the post.The flip arm is set on a spring, and I will agree with other reviewers that there is a bunch of side-to-side play. For most people, this won't be an issue. For Operator-class folks or nit-picky folks, this may be a deal breaker. This can be improved. There is roughly 0.019" (manufacturing tolerances apply) of play in the front sight. A 0.020" gauge slides in but with a little friction. So a single ~0.020" shim or two 0.010" shims can improve this. Lapping is highly recommended. Again, 0.019" is what I measured. Your mileage may vary.The thumb screws are absolutely too short. As far as I can tell, there are only a few teeth of engagement with the retainer nut. I have not fully disassembled these yet so I don't know the proper sizes and lengths at this time, but this is a quality fail on their part. This is one of those "Airsoft exclusive" points. I'm sure the shock and vibrations of real ammunition will eventually back these screws out and you'll loose the nut forever. If you don't have intentions of replacing the thumb scews, get some loc-tite and lock these down. The knobs are definitely too small. Again, for players, you sight-in, set it and forget it. The bigger the knobs, the more you will want to adjust it as you're following cross-wind or shooting into a heat pocket. DON'T DO IT! Operators who wear gloves and account for drift will find the knobs impossibly small, as opposed to the adjustment knobs on an A2 sight, for example. I'm not an operator, so it won't be an issue for me - just saying.I also agree with others who mention these don't fit or have a loose-fit. I'm putting these on an old Bushmaster upper and there's no amount of cinching that will get these to fit. Luckily for me, I can put these in a mill and cut the mating surface on the sight, not the clamp, until it all fits. Most people don't have this luxury, so if you're still on a budget, you can hit it with a file until it fits snuggly. These are aluminum so it won't take much. Also, don't go crazy, otherwise you'll create a gap and the fit will be weird. (Update: I just filed my sights with a file. It took me all of about 3 minutes each, with 2-3 fitments in between. So, it's worth 2-3 minutes of your time with a file to get these to fit on a MILSPEC upper)The rear sights have the same issues as above. Since the front and rear don't fit, it seems this was done by design, which doesn't seem to be MILSPEC.The apertures on the rear sight are horrible. The large hole is WAY too big and the small hole is WAY too small. Luckily for me, I will be swapping them out for my Trijicons, which I'm not 100% if the Trij aperture will fit or not. It SHOULD. I'm trying not to swap too many parts until I get everything to fit right, Again, your mileage may vary.The thumb screw/button setup is horrible. For something small like this, one would naturally use the thumb and index finger a squeeze. Well, the natural squeeze will prevent the sights to flip. Like a Glock, the nut should be concealed to prevent the user from squeezing both sides. I believe the buttons are intended to be pressed with the rearward thumb and forward index finger - for right handed shooters, with the rifle pointed forward. It's all awkward for Lefties. This is one of those techniques that would have to be practiced and mastered, otherwise, it will take you about 15-30 seconds, fumbling around with it before getting back on target.So to sum it up, I believe these sights CAN be good enough for a real firearm and possibly for duty - IF you put some work into it and save a few bucks. If you don't have the know-how to tune these sights, either outsource to someone who does have the know-how, accept it the way it is, or return them. Otherwise, the way these are delivered, I couldn't see them good for anything other than Airsoft guns.I give these sights 3-stars because the idea and potential for a good/great product is there, but the design and quality are lacking. For $25 or so, I suppose you get what you pay for. I will eventually put in more than $100 worth of work to get these to where I like it plus the Trijicon components, but for me, it's more about the journey. However, manufacturers should not take that for granted and think that "the customer will custom fit the product anyway". No, manufacturers should design and produce products that customers can install and go play, since not everyone is a gunsmith.

As some other users experienced, they came loose while shooting (rear sight). I put some blue Loctite on them, torqued them down well enough, and allowed the LT to cure. Not sure if the design doesn't allow enough thread engagement or what the deal is. I had them on a suppressed AR-10 w/16' barrel and while doing some reflexive fire drills they came loose and fell off (only a couple mags in). Maybe had them up just to get a quick feel for how the transition plays out, though was using the scope (not that it does or should matter). One of the little pieces was lost in the woods when it fell off and without it I cannot put it back on, so now they're junk. For the price compared to Troy sights (the ridiculous price of those is another issue), I'll give them another go. Though I refuse to use Red Loctite to overcome a crappy attachment design. Confidence in your equipment is important, so if some blue and good torque can't do it, I'm moving on.Aside from falling off, they're actually pretty decent. They don't deploy the smoothest, though smooth enough and they have positive locking detents for both closed and open positions, which I like. I prefer the recessed windage adjustment like Troy sights, though this one is small enough and tight enough to not worry about it getting bumped and turned while slung (and while slung these are not against my body as I'm right handed, right eye dominant). They are low profile and fit well under my Vortex Viper PST Gen II 1-6 x 24 scope mounted with the Vortex Precision QD Mount.I can't speak on their ability to achieve and hold an accurate zero (because they fell off), which I define as capable of deploying and stowing regularly and having virtually no shift in POI on a 25 meter zero target, which leads to still being able to hit targets out to at least 450 meters with the iron sights on an AR-15, and pinging steel much farther with an AR-10. If they prove worthy on AR-10 and AR-15, and my torque screwdriver still shows they're holding steady, I'll upgrade to 4 stars (then clean and reinstall). Can't go higher than that based on the less than stellar deployment functioning and the knob style windage (I get it - you could adjust for windage potentially rather than basicall just get you're zero, though wind calls and holdover (Kentucky windage) is easy enough within iron sight range. Also, this adjustment isn't really a precision thing anyways).