Please comment back here or PM me about the magnifier once you've got some rounds through it! For that price it'd be a fun cheap range accessory!
Jacket67, I got the magnifier today, and the short review is similar to the Amazon reviews: optic good enough, mount is questionable.
Long review is that the optic is on par with most low to medium level optics today, meaning about a B grade optic, perhaps on par with a low level Vortex. It is relatively clear edge to edge with no significant vignetting (darkening around the edge). The clarity is good enough to be very useful, but certainly not as crisp as the better Vortex's (looks like a fair amount of chromatic aberration). It doesn't come with instructions, but I believe the front eyepiece is adjustable for focus somewhat, which I wasn't expecting. Comparing it to my 2.5-10X Vortex, the magnification seems to be 4X, not 5X as advertised, which is OK for me. Bottom line is that I think the optic is more than good enough to be useful and to be worth the 35 bucks shipped it cost.
The mount is probably a copy of some American design. It is complex and has everything you need. The problem is that it's not precision made, so there is a looseness to it even when things are tightened down. I originally was going to use a quick-release mount I already have, but then I remembered that the Holosun mount had been changed to the full height mount, which was too high for my medium height quick release mount (need to get a higher quick release mount). So I was left with the project of tightening up that flip mechanism of this new magnifier. It turned out it wasn't too difficult, but it is a jury-rig device at this point. I ended up shimming the rear flat area where the hinged pieces meet with two layers of gaffers tape. I also let some of that tape fold over into the groove so that the groove was shimmed as well from a separate axis of looseness. End result, it flips open, closes, and doesn't feel loose anymore...so good enough for government work (not self defense or professional work). I will likely use the mount till something better can be found for a good price.
The mount is the right height, and the left-right axis can be shifted with a screw that can be found on the left front of the mount. This puts the red dot in the center of the magnifier, although it doesn't hold center forever. This centering action is probably a necessity, and my original plan to use a simple quick release mount (which doesn't have this centering ability) probably would have been unsatisfactory even had it been the right height (red dot would have been too far left or right). The screw to tighten the mount on the rail has a flat head screw type, so not optimal. I foresee that becoming deformed if the mount is taken off and remounted often (not the best metal used either, I think).
The eye relief is short, like 2 inches or under, so you have to get right on top of the magnifier almost, if you want a full clear view. Because of this, I had to put the magnifier all the way back on the picatinny rail, moving my 45 degree iron rear sight forward of the magnifier, enough so that it didn't impede the right flip of the magnifier. The Holosun is mounted on the very front of the receiver's picatinny rail, and about 1.5 inches separates it from the magnifier. So in the end it all fits on the receiver.
I think you'd have to spend 10X my cost to get significantly better optics, and I don't need it to be better in any case. If a better mount is bought, it'd be good to go for self defense. Who knows, I may leave it with that mount on the gun, in which case it might be used for self defense in the end anyway (just reluctant to recommend it to others, who will likely be fussier).
anti cant level and installed it on the scope . The next time out I doped the scope with a new load out to 300yds using just the reticle making sure the rifle was level and it shot center of POA every time at all distances .