I bought a S&amp;W M&amp;P 15-22 and got this riser to co-witness my TRS-25 with the iron sights on the rifle but it appears to be about a fifth of an inch too low. All the reviews I read on this said that it should co-witness perfectly, perhaps I'm missing...
172126
Have you zeroed the weapon worth rounds down range (Irons and Red dot) or are you eyeballing it?
1817284
I have M&P 15 and it brings you to the perfect height. Works well with both scopes I have. Red Dot and UTG x9.
1858619
It depends on the iron sights themselves. The UTG riser has a square hollow opening through it, so low-mount irons might work. The flip-up or tall irons might work with the right optic......and it all depends on how you have each mounted on the main flat-top rail.
1303628
I own a Colt M4 carbine and I have the M2 front sight. It's factory and I don't want to mess with it. I have a Trijicon and a Bushnell sight, and ordered the UTG-1" adapter rail because the front sight was too high and the ACOG sight was not working. The 1" seems to do the trick for both sights, but I have not been to the range yet. That will tell the story, but I'm sure the problem was solved with the adapter.
1897415
Personal preference to co-witness your sights or not but I would with flip ups. You can drop your sights down and out of the way when using the red dot. If you co-witness you will want a medium riser and to put the sights below the red dot and not co-witness a high riser.
293216
should co witnness with front site post, if not then add riser. have to check to be sure, works on my s&w; ar 15
1954120
I checked the dovetail on the gun and it appears to be level so what I did is take the movable clamp on the sight off. Then I carefully filed the bottom making sure I kept it flat on the file. I did this a little at a time reinstalling it and testing until the cant was gone. The sight is a nice sight is nice but a better mount and adjustment arrows would have been nice.
2004669
Whenever I used this optic, which I don't anymore, my AR didn't have a front sight post. It was a slick top. However, this optic doesn't sit very high up but I don't think you would need a riser. Just be aware that you're gonna get what you pay for in this optic. I have since switched to the Lucid HD7 which is a much better optic. IMO. Hope this helped!!!
1155421
I have M&P; 15 and it brings you to the perfect height. Works well with both scopes I have. Red Dot and UTG x9.
293215
should co witnness with front site post, if not then add riser. have to check to be sure, works on my s&w ar 15
1764608
I have an F-marked front site base and Magpul flip-up rear. With this setup I have no co-witness. I had to order a mid riser to see through it at all.
632351
It is a matter of personal preference mostly. An absolute co-witness should "Dead Center" the optics Red/Green Dot Reticle in the center of the optic, and align with with your BUIS (Back.Up.Iron.Sights) in the middle of your tube . With a lower one-thirds Co-witness, your Iron sights will appear through your Red Dot Reticles tube, in the lower one-thirds quadrant of your Red Dot Tube. Depending on the height of your picatinny Rail setup, you can Add/Remove a 1/3rds Riser mount, to adjust your red dot sight so that it aligns properly with your Irons. Which ever one you go with, try it out first and see how everything lines up together. If it isn't quite right, try the 1/3rds Riser mount. I know that TruGlo makes one.
1971435
Hello Dylan: My AR MOD 1 w/ SPR fire dot is mounted 3.5 inches above the bore line for my particular cheek weld to the stock. The M&P; 15 A2 front sight is a small blur at the very bottom of the image at 1.5x and it disappears quickly on the way to 4x. That being said, I am told that with 4x and above there should be no hint of the A2 sight in the scope image for normally mounted scopes at 1.5" to 2 inches above the bore line. ChuckPS...Great scope...
1517782
Not being a gun enthusiast, I don't know what he means by CO-WITNESS. I did not mount a riser on mine.
2155378
This sight has a mil standard post just like on any other AR/m16 adjustable for elevation. Any standard mil spec post should fit just fine. You don't necessarily need a tool to adjust it. I used a small nail to depress the plunger and it worked fine, though I now have the tool. Also, choose your rear sight carefully. Some fronts and backs don't work well together This one works fine with the flip up UTG rear (which does not have elevation adjustment), but won't work with some other varieties due to their lack of elevation adjustment, or not enough adjustment to get them aligned properly. This sight has a mil standard post just like on any other AR/m16 adjustable for elevation. Any standard mil spec post should fit just fine. You don't necessarily need a tool to adjust it. I used a small nail to depress the plunger and it worked fine, though I now have the tool. Also, choose your rear sight carefully. Some fronts and backs don't work well together This one works fine with the flip up UTG rear (which does not have elevation adjustment), but won't work with some other varieties due to their lack of elevation adjustment, or not enough adjustment to get them aligned... » Read More This sight has a mil standard post just like on any other AR/m16 adjustable for elevation. Any standard mil spec post should fit just fine. You don't necessarily need a tool to adjust it. I used a small nail to depress the plunger and it worked fine, though I now have the tool. Also, choose your rear sight carefully. Some fronts and backs don't work well together This one works fine with the flip up UTG rear (which does not have elevation adjustment), but won't work with some other varieties due to their lack of elevation adjustment, or not enough adjustment to get them aligned properly. « Show Less
1483508
It is at the same height as the iron sight, but because of focus distance, you really don't see the front sight, just a slight shadow. So its not really a co-witness since the front sight isn't visible through the optic.
68324
The center of my optic is 1.57" above the top rail. I'm using this on an SPR type rifle that doesn't have iron sights so I'm not sure about co-witness but you can measure your sights and compare to my measurement.