Retired aviation mechanic - AIM Sports 1x33 Dual Illuminated Red/Green Reflex Sight w/ 4 Dot Reticle

This little guy is unbelievable, a friend had one on an AR-9mm and we sighted it in at the pistol range. I laughed when he told me the price. ( I did't expect much for that price ). Well this sight shot so great I bought one for my 9mm build and use it at pistol and rifle range out to 100 yards. This is the most amazing sight I ever put on a gun.( took off my Fast Fire III and put this on ) I still can believe how great it holds Zero and the price. This is NOT JUNK, I bought 2 more for other builds. Shooting a Palmetto State Armory AR 9mm with a 16" barrel and this sight out to 100 yards. 124 gr. FMJ bullet / 4 gr. Bullseye powder. I don't know if a heavier caliper AR 5.56 will hold up as well, for the price it is worth a try, but on a AR 9mm this is the TICKET!!!!!