Gentlemen
These type sights are all the rage with IPSC pistol shooters and "Special Ops Types" for their assault rifles.
They do work very good and are very, very fast. The non plastic ones are pretty rugged.....
However they all use batteries.
Every time I an around such sights a couple are always without power...
I do not want any sight that is battery dependent on a DGR rifle. Whether it is for 2 legged or 4 legged DG.