As with all things LMT this rear A2 style sight is top grade quality. Zeroing the rifle is exactly that of zeroing with the A2 style carry handle sight. In other words it easy and on target.
I use this sight to co-witness with my Aimpoint CompM3 and I rarely miss targets out to 100 meters if used properly with both the front sight post and the red dot through the distance aperture.
Mounts easily to the rear of your flat top reciever.
There's only draw back to this sight. If you wanna run a secondary optic like a 3x Magnifier or PSV/14 it sits too high to make it happen.
This is the only other sight that I'll use if I'm not running a secondy magnfier or NVG behind my Aimpoint. Rock Solid.
Got one of these for my Mk18 clone. It is an excellent product.
Bravo's service is top notch. I will be back. . . . .again.