Green Blob Outdoors Rapid Transition Front and Rear Iron Sights Low Profile Fold Down Fits Picatinny 1913 Pattern Rails

Quick fix for a $100 set that was damaged. These are sturdy and hold zero. they're staying on my AR. I'm very pleased.

no problems had them for some time will take a beating and still work happy with them.

Absolutely amazing sights! These are rock solid and hold up like tanks, there is no way for these to flip up from recoil or move in any way without the assistance from the shooter. Up or down these get locked in place by a detent and only move when you press the button. The spring is nice and strong on both front and rear. When they are in the down position just press the button on the side and they shoot up no problem and are locked up. To lower the sights press the button and hold as you move them down and release the button and they are locked in. I wasn't expecting this quality for under $20, so a real surprise. The only thing that isn't really a issue but worth mentioning is the appature on the rear sight is easy to switch from one sight to the other, I typically like it to be hard to flip, but this again isn't a issue as it's still firm. I've already purchased another set but in the diamond shape and will definitely purchase another set in the future!Please don't misconstrue my review and think these sights are on par with troy or diamond head or any other high dollar sight, these are not. What they are is a great alternative to the high dollar sights that will hold up to pretty much anything I will ever put them through and work when I need them too. Again these are amazing sights for the money and will purchase more in the future!

well these sights i was nervous about ordering. i took a chance and i'm glad i did. they seem to be sturdy enough to handle 223. if you want some cost effective all metal sights, these are the way to go. the button hold the sight is firm and the spring is stiff enough to hold these in place perfectly. the adjustment has a good click to it. these will be on any rifles i need sights on and i wouldn't hesitate to buy again. that said, i had a minor issue with the front site but the seller was quick to send replacement. i'll not knock them for that. every company can produce a dud from time to time. i'm sure the replacement will be perfectly fine as the rear sight is great. the seller i wouldn't hesitate to buy from again either. they were quick to respond and address the issue.

very happy with these will buy more...excellent quality steel~

Appearance clone of YHM QDS BUIS.Two things keep this from getting 5 stars. (1) Roll pin holding the rear adjustment knob falls out. Put back in with vibratite, but come on. Its a roll pin, not supposed to fall out. (2) Flipping between the rear apertures actually moves the adjustment knob...but only in one direction. So each time you flip to the CQB aperture it moves it forward, but not when you move it back.Look, I understand these are cheap knock-off sites. But basic functions should work.That said, I tried them on an upper that I use as a 'loaner' for folks coming to the range and they do hold zero (if you don't change the aperture...). That was actually impressive. They've been out 3X now for about 530 rounds and no drift. Now if the aperture just din't mess with the windage adjustment...

Would have rated a 5, but the rear sight when folded out of the way, must be kept on the large aperture. If on the 0-200 yard aperture, the sight impacts the rear of the receiver just above and in front of the charging handle on my AR.When in use, I get a nice lower 1/3 cowitness with my red dot.They lock on the rails nicely, no wobble.Will update after I get to the range and zero them.

Out of the package, these site appeared to be a pretty decent quality. In fact, I am extremely happy with my front site. However, on mounting my rear site I noticed a severe lean to the left when viewed from the rear. I contacted green blob and advised of the defective site. I never received a response but did get an email that an item was shipped to me. Like the initial order, it was shipped via the slowest possible manner,... we are in bordering states for good grief! I was however excited to receive my replacement part so I quickly opened the box to find a completely different type of site. It was not a spring loaded flip up like the one I purchased and it appeared to be of lesser quality.I contacted green blob once again and advised that I received the wrong part. I notified them that I did not want a refund and I did not want to wait for another site. I am just too disappointed to care about a resolution. If I had defective the first time, you'd think that they might take the time to even check my order so they get the correct part and maybe inspect it to ensure it is defect free.Save your money and get some name brand sights,... shame on green blob and lesson learned,... there won't be a shame on me, I'm done!