Edit 2: It's been a few months and I am impressed by the seeming durability and accuracy of these sights. At first I thought about replacing them (the rear too) with Magpul Mbus because so many go with and recommend the Magul, perhaps largely because of the name. But the UTG's are METAL sights and sit very low and out of the way. I think they're just as easy or easier to deploy than the Mbus. I got these sighted in and at 75' without a bench rest shot some pretty respectable groups. See the photo above and you can see the group in the photo is as tight as the one with the red dot (which apparently needs re-zeroing). If you're not going to play in the sandbox or on a regular duty where stuff gets abused why pay more, especially if red dot is your main thing? Edit: As a new rifle shooter I didn't understand what "lower 3rd co-witnessing" was. I thought I needed sights that stood up more and also didn't understand that I wasn't holding the butt stock of my rifle high enough. And so I may repeat some of what I said initially, but have grown to have a greater respect for these sights. As I've lived with them for a few weeks I can say they are very easy to install, to use and sight in, providing you get a front sight adjustment tool. If anything fails it will be the ball bearing that allows the sights to flip up and hold position. While they do not have the push button flipper that Magpuls have, they can be deployed just as quickly. Unlike Magpuls you don't have to wrestle them on and they secure easily and lay very flat. I have changed my rating to 5 stars. You can always spend twice the money or more for something more "battle tested". But it seems rugged enough and I would think these are reliable enough as I think they are well engineered and manufactured to withstand a modest amount of use. This front sight installed in seconds in the forward-most position on my picatinny rail. It is simple to operate. Just flip it up and it locks in place. You push the release button and fold it back, all done with one hand. It's not spring loaded like some, but IMO the spring loading is absolutely not needed and something else to break. A small plastic bearing clicks it in place and I've seen how it could be replaced by a steel bearing if needed. I found these sights to be great in the respect that I don't have to dismount my red dot to use the iron sights. Even better, I was able to use the red dot to be able to get the sights aligned and basically sighted in. If this works for the initial adjustments it should save me some $$ not having to spend it on ammo to get it sigthed in. I'll have to see how good this method works later in the week at the range. THE ONE THING that I wrestled with is the front sight adjustment without the tool. I used the red dot to dial in windage and elevation, but the front sight was tricky to do without the $10 front sight adjustment tool. You have to push down on the locking pin which is off to the side by the right wall, then attempt to turn the turret. With other sights you can do that with your thumb and a bullet, but the adjustment is too recessed in the housing. I ended up using a small allen key to push the release button and a bullet (sometimes a nail) to turn the turret. It wasn't easy and took about 15 minutes to get the elevation where it coincided with the red dot. It would have taken 60 seconds with the proper tool. I didn't mark the accuracy box, but I have no doubt that once I make any additional adjustments it should be fine. Hopefully it will (and I expect it to) hold zero well. I originally gave it overall 4 stars,because of the hassel of the elevation adjustment and perhaps only because it's not a Magpul or Troy that have are industry standards. But if my red dot ever isn't available I think this will work fine as a backup. As a follow up, I temporarily had a set of Magpul knockoffs for almost as much as the UTG sights (thinking they were genuine when I purchased them as they were advertised as such... and got my money back). While the genuine Magpuls would be better quality than what I received with the knockoffs I could see that the UTG sights are a great value. I hope to compare them to genuine Magpul sights,but I think I'm going to still like the UTG sights better. We'll see. Stay tuned.