Needed a low rail riser to get my scope to ...
931802
Needed a low rail riser to get my scope to clear the  iron sights. This fit perfectly, worked perfectly and did the exact job I needed it to do.
4713329
If your trying keep the weight down this is it. Plenty sturdy and with three indexing rail lugs it should return to zero if you remove it for some reason.(important footnote:::Always push the mount forward against the rail lug while tightening mount). Others mention they had trouble keeping the reticle level while tightening the rings down. I am excessively anal about having the reticle dead level and I have come up with what I think is a precision way of doing that. So in saying that I did have a little difficulty at first. After I figured out how many degrees it would rotate I simply started that many degrees in the opposite rotation, checking often as I went to proper torque and be within +or- a 1/4 degree ( that's flat) I change out scopes way too much anyway so eventually I will have I of these on all of my ARs.and this one is the right offset for me (there are three different offsets)
3540551
Bought this for my AR, you will need the riser or extra high scope rings. Good for 50-80 yds if you're going for precision. Probably don't want to use this for anything further than 100 yds. unless its a big target and shot placement doesnt matter. Who knows maybe I just need to get used to this.
196001
Good riser, bought it for my Skorpion but it's a bit high so I'll be saving it for an AR
4283545
I originally had a 0.83 height riser on my Kriss Vector when it was wearing the new Gen2 AR type stock. Then I ended up putting the original folding stock on it I noticed it drops your cheek down a bit more, making it a bit harder to keep a sight picture without breaking your cheek weld. This mount was perfect for getting that dot right on center again. I can even co-witness the magpul sights however they do sit a bit higher within the optic.

The riser seems well made and I liked the feel of the tightening knob.
1275170
This sight did not come with a base with reasonable height which made it impossible to be directly used on a rifle. I had to buy a riser mount and ended up spending $30 more. Consider that, the $90 price is not good.
431647
This looks awesome on the scope, and would definitely make adjustments easier. I unfortunately couldn't get it to tighten up enough to quit wobbling. Was actually able to slip it off by hand without loosening the mounting screws. Working on finding a solution to that but haven't had much luck yet.
4343422
I used a little gun oil in the crevasses of the scope mounts. After working the mounts onto the rail and giving a little force (used a rubber mallet to tap on), they slide right on. Now they slide on and off fairly easily. Give oil or grease or some type of lube a try if you are having difficulty installing them. 4 stars because I had to figure that out and it should be in the directions (there are no directions).
4417946
Needed to add clearance between my RRS TVC-24 and RRS BH-40 with a pano head.  The Pano clamp would rub when I used it vertically, the riser solved that issue.
596334
Good little unit just what I needed to get my scope where I needed it
4019861
The rail works fine , my issue is that the rifle will throw the brass up and it strikes the rail causing failure to feed, failure to feed. It is ok if your rifle will the brass out instead of up.
4773855
A little oversized for my rifle, but I made it work.
3116896
Quality low budged scope that does a great job holding "0" on my 870
1196536
my first mount was too high and made the shooting difficult and the rifle was top heavy and with the low profile it works perfect
1857549
This rail raised my scope just high enough to be able to use original iron sights and/or scope. It allows a large enough "tunnel" under scope to see target clearly, and use original sights when I want to. I received this earlier than expected!
2272825
I put the mounts on my Winchester and tried to zero the scope at 100 yards. I couldn't get enough elevation to compensate for bullet drop. The rear mount was .034 lower than the front sight from the factory. I was able to shim the rear and solve the problem. Good buy if you don't mind doing some adjustment work.
232781
It is low profile so on my ar I had to get a riser to make it a more natural eye relief. So far it is accurate wi th my. 300 blackout.