Outstanding rear iron sight
This rear sight co/witnesses perfectly with my Aimpoint PRO in addition to my YHM forearm front sight. I now have a reliable MBUS back up tp rely on at any time. The construction is heavy duty and will last.
I like it
I have 2 of these rear sights on my ARs and find them to be just what I needed. When I don't need them they stay folded and unobtrusive. When needed, they are easy to deploy and use. I have been using them for several years without them coming loose. I do check the screws from time to time and they always seem tight
good buis
I have this on my AR with the vltor rail system and an Aimpoint with a lowmount. Works great! Only problem with "losing zero" is probably due to the A2 windage nob. Personally, I don't have any problems with it at all and would recommend it.
Great Backup IRON Sight
I don't understand the complaints about this sight falling off. I installed it 8 years ago with blue loctite (obviously) and have never had that problem. It is now on a new gun and no problems whatsoever. The only complaint is that it sits too high when folded to fit under some of the newer scopes. I have a Primary Arms 1-6 on my latest rifle and I can't use the sight under it. So I've moved it to a rifle with a red dot. I couldn't be happier. I can only guess that if people are having problems they are either not using loctite (which should be used when attaching ANYTHING to a firearm) or are using the thumb screw to make it finger tight!
Allows for change
This sight allowed me to mount an xs csat on it.
Good Product.
I use this product on my AR for competition, i have to agree that the lock nut comes loose easily on vibration of firing, i fixed the problem with Loctite and staking the nut. Other than that... im' happy.
solid sight
Mounted to a Rock River flat top upper with standard A2 front sight and gas block. It's actually a lot of sight for a BUIS. Two apertures, for closer and long ranges, full windage adjustments. Locks up well in the deployed position, folds down passively (no detent holding it closed, just a little friction) As mentioned, the thumb knob that anchors the sight to the receiver will work lose. That is the biggest con. I had to loctite the threads to keep it firm. Not a problem for me as I don't remove the sight anyway. Will co-witness with the Comp series of Aimpoints, mine is mounted with the ARMS quick detach mount with spacer. Is not the lowest profile sight when folded down, so if that is an important feature for you, you might not like it, though it is completely out of my way when using the Aimpoint.
Good BUIS
This sight is pretty good, decent quality and holds zero well. The only drawback from this sight is that it doesnt sit up high enough to clear optics when "flipped up". Otherwise good product. I use it behind my EOTech and it isnt quite tall enough to clear the sight glass. If they would rais it up another 1/8 inch it would be perfect.
A very effective backup sight.
Simple, light weight, and effective. The only con is that the lock up detent seems like it could be stronger. But then again, mine has lasted several years and still locks in place and stays up.
Rear Sight
My initial impressions of this sight were good however I found that it constantly loosened up under fire.
