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NcSTAR AR-15 Flip-Up Rear Sight, Dual Aiming Apertures

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NcStar has designed the ultimate backup sight that has a posi-lock to withstand harsh recoil. Flip the sight up and maintain use of your iron sights or fold the sight down to use a scope. The dual aiming apertures allow for both long and short range shooting.

Features and Specifications:
Manufacturer Number: MARFLR
Adjustable for windage
Extended Length: 1.3"
Folded Length: 1.9"
Weight: 3.7 ounces 

Item#: ARR-597,9-59754
Total number of Reviews: 36

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5.0 5
"Nice sight for the money. Locks in the up and down positions nicely. Good, positive windage adjustments. You won't be disappointed with this BUIS."
– Jim
5.0 5
"I ordered one of these an as the other review said: windage is easy an it locks in nicely. Great sight for what i needed. With a riser an scope it fits under the scope perfectly."
– kurt in tn
5.0 5
"I was very skeptical at first due to the cheap price compared to other flip up sights I looked at. However I was starting to run low on funds for a budget build and was in a bind for a sight to put on the thing. Well this sight has preformed far above my expectations. This little sight is perfect. Cheap, made well, color matched, easy to put on and dead on accurate, what more could I ask for."
– NOLA Shooter
5.0 5
"I just got this in and took it to the range. It installed easially and quickly and needed no adjustment to be sighted in!"
– Tim
4.0 5
"For the price I guess you can't complain too much, just remember how much you paid for it. It does function as it was designed, I wouldn't reccommend it if you can afford something better, but for the money it is hard to beat."
– gr8jrny
2.0 5
"I'm a young broke kid with and expensive habit so I tried to cut a corner by getting this sight. Looks good for the price right? Well it isn't. The top that flips from the base was crooked and that huge knob that sticks out on the side is not flattering on your gun metal, mil spec, beast of a weapon AR-15. Let's be honest with ourselves, if you bought a new truck you wouldn't go to the local auto parts store and throw on some plastic fake spinner rims! This sight is a disgrace to your firearm. Lets all pay the extra money and get a Magpul flip up sight or something like that. NcStar products are trash."
– halldrop
1.0 5
"Skip out on this one unless you're looking for a flip sight that doubles as a paperweight."
– Randy
5.0 5
"I don't care what anyone says, this sight is one of the best things I bought for my AR. Good quality. I thought it was going to have shotty workmanship, but I was very pleased with the product."
– Novus
5.0 5
"I'm running this on my Armalite AR15M4. The fit and finish is great."
– Julian
5.0 5
"Great little sight. put it on my bushmaster with yankee hill upper. CTD sent wrong sight but as soon as i called they shipped the right one out that day. Couldn't be happier."
– Justin
4.0 5
"Nice solid, basic sight for my M4 upper. Easy install, can't wait to get to the range and sight it in!"
– Tom
3.0 5
"This sight was good for the price, and I wanted to keep it...however it did not fit properly on my Del-Ton AR-15 \"M-4\" upper. For some reason when tightened down all the way it was still loose. Customer service asked the techs what the problem was and they said it should fit- only, it doesn't. Customer service was very good and they are sending a different sight that will hopefully fit."
– sillybutt
4.0 5
"Only reason I did not give 5 bullets is it should have a positive lock to hold it raised and it could be a bit lower. As far as the knob sticking they all do. Great product for the money."
– lrt
4.0 5
"I bought this sight due to its price and it seemed like it would be fine from the reviews, it came in and I only had enough time to put it on my rifle and put it in the safe, well upon bringing it to the range to sight it in I had to move the sight on the rail. and when I unscrewed it the bolt fell apart leaving not enough bolt for the nut to screw on, so needless to say the sight was useless, I emailed NcStar and told them what happened, they very quickly responded and told me to simply send the broken sight in and they would send me a new one. about a week later I got the new sight and it was great. very impressed with the customer service I would definitely buy from them again."
– Lambofgodfan90
5.0 5
"I was concerned about buying this item because of the old addage, \"you get what you pay for\". Well, I put this on my Del-Ton AR-15 and went to the range today. This sight only took a few minutes to get to zero, and I was soon able to shoot a hole in the paper about the size of a dime at 25 yards. I was thoroughly impressed with the quality and price of this sight."
– mhill
4.0 5
"My PROs: are the the price is decent. You can find them a little cheaper else where but sense I had to order other things I threw this in also. Seems fairly sturdy and durable. My CONs: are that, on mine any ways -the upper sight piece that swivels it to fold the whole thing up and down(NOT the sight picture itself) is a little crooked. I can bend it by hand to looks straight but it kind of goes back. I might be able to tweak it. None the less for the money it does the job. If it was perfectly straight I would have given it 5 Bullets. I think if your on a budget it's a good entry level rear sight. Its your call.."
– Cali Guy
5.0 5
"Bought both front and rear sight for M&P 15 OR . Installed with great ease. Had to purchase riser for red dot. With sights up and red dot off, perfict sight picture. Folded down red dot on, out of way."
– pmax
5.0 5
"Bought this for my Ruger 10/22 that I converted into an AR15 style with the Achangel kit. The sight is great, easily adjusted, and quality steel. I like the dual apertures- 1000+ rounds fired with it. I recommend it especially for the price."
– prmccarthy
5.0 5
"If you have a flat top Upper on your AR-15 and you are looking for some flip sights, don't think twice, order these. Other people who have had issues about the quality are crazy. If you don't want ot break the bank get this rear sight. It does extactly what you need a rear sight to do on an AR-15. I bought these as a secondary sight system because I primarily have a red-dot or a tactical scope on the flat top. I think the only down side it that these are a little bigger than brands like M.I. flip or promag. But who cares? The nob on these stick out, but I like that because instead of taking an allen wrench around, I can put these on with my hands and tighten them with my hands. If you don't want to spend $100 per sight, stick with these iron sight bad boys. They are worth every penny."
4.0 5
"I have this sight on a Del-ton. Took it to the range the other day and it worked great. I shot 55 grain Federal ammo and didn't have any problems out of the sight: nothing came loose or moved on it at all."
– ontarget700
3.0 5
"Little bulky, but not bad for the price, it works."
– Ben
1.0 5
"Junk. The hinge pin that allows the sight to flip up and down does not stay seated in the frame and pops out while using on a .22. This causes the rear sight to skew horribly in grouping, and if you don't know what to look for you'll swear your zero is completely off. Thankfully CTD replaces items that are defective in a rapid manner."
– Dustin
1.0 5
"Since my last review concerning this sight I have gone to the range with a few more times. The last time I went it began to come loss from the upper rail of my ar. I was shooting American eagle 55gr bullets. I have since ordered a magpul to replace it. Would not recommend this sight"
– Ontarget700
4.0 5
"You get what you pay for. Can't beat the price but you sacrifice some quality for it. Tolerably accurate. I'm a former US Marine and we take our accuracy seriously so you can rely on me when I say this sight is good enough for a backup. You could do better for another $100 but who wants to waste the money - save it for a quality optic. The sight locks upright via a detent but rather annoyingly can be knocked quite easily down while carrying it around. No elevation adjustment and no skin of my nose. Windage adjustment is classic A2. Small peep and O-2. It does what it's supposed to, and for an agreeable price."
– MBearR
2.0 5
"Shipping was fast as is normal with CTD. So I installed this on a stag M15 and it fit the rail well. It didn't fold, dosen't come with intructions ( shouldn't need too) after man handling it, it folds but doesn't lock in either position. If I breath on the windage adjust nob it will turn, so I can see how this is going to hold zero. It seems that the whole sight is angled forward about 10 degrees off center, can't atest to accuracy as I haven't shot with it yet. UTG make the same thing for $15 more, stay away from made in china junk"
– thatguyfromnj
4.0 5
"These sights are great! I ordered three sets for myself and two others. They fit perfectly on our DPMS Oracles. All sights lock up securely in both positions."
– wikkidevil
1.0 5
"I'm definitely returning this item. I adjusted the windage, which moved left to right, but I moved elevation and it moved left to right also. I have purchased many products from here and this is a first bad buy."
– Nav6469
5.0 5
"Works great on my AR-15 and it better than UTG sights I have for my AR-22."
– bullet
4.0 5
"Put this on my flattop AR for backup sights and the first thing I noticed is that the peep hole is half the size of the original. Detents worked perfectly and it folds nicely for getting out of the way."
– Mekanikwill
1.0 5
"I'd rate this piece of junk at somewhere around as useful as a knife in a gunfight, or a scree door on a submarine. The first time I took this product to the range, the sight fell apart after 30 rounds through my AR. I have bought various other NcStar products before and have had similar issues with them as well. I guess I had it coming in anticipating that the quality may have improved in the past decade. It hasn't. As I type this review, I have also ordered another rear flip up sight of a different make. The exact problem I had with this sight is that the pivot pin fell out, which then caused the the spring loaded pin that keeps the sight either up or down to push the top end of the sight out and away from the rife, hitting me in the face. So it isn't just a measure of dissatisfaction, the product is unsafe."
– Mike
4.0 5
"Great for the price. M&P15 looks great and works great. I replaced my UTG (put them on my Archangel Ruger 10/22) and these work great on my AR-15."
– Robert
1.0 5
"I bought this because the reviews were decent. On my 7.62x39 build it fell apart after about 90 rounds. NO rapid fire, just trying to sight in. I am very annoyed with this item."
– freedomwatchers
1.0 5
"I put this sight on my DPMS. It fit well until I fired 90 rounds, and then it fell apart. Spend your money on good flip up sights. Don't waste your money on these."
– James
5.0 5
"I installed this on one of my AR-15 models and I have no issues. It is fast and easy to sight in and keeps a zero well. Use a flat-head screwdriver to secure tightly. I used it with the front sight made by NcStar. It is low profile also."
– TexasPr1de
4.0 5
"Takes some strength to get it tightened the first time, but after that, it worked well. Holding zero fine and it feels well made. Good price, too."
– Michael
1.0 5
"My initial review was positive, but after about the 200th round, it fell apart. The pivoting pin that hold the top and bottom together came out and it fell apart. I don't see anyway to fix it. Ordered Magpul MBUS and like it more. Less bulky and more attractive, but haven't been to the range yet."
– Michael