Love it, all around - Vortex Spitfire HD Gen II 3x Prism Scope

Ideally it would have longer eye relief, but on an AR pistol, you're close in anyway. I'm fully comfortable with it. At the range the other day, another shooter said "100 yard bullseyes with a red dot?!". I laughed and said, No its a 3x prism scope. He begged to check it out and shoot it. He remarked how big and bright the image is. Great glass. I had a Nike 3x scope, and loved everything about it except that on a 8.5" pistol it was just too heavy. It imbalanced the whole piece. This little beauty is no bigger than a red dot. I can shoot with both eyes open. It has a nice CQ reticle, and a 1 moa center dot, that are permanent, (as well as illuminated) so no need for back up iron sights. I did the math and the 2nd subtension on the BCD scale is a nice approximate 200yrd (4 moa) for the 125 gr. .300 blk. What more could you ask! Very happy with this scope.