x2 on what Pete said. I still own ARs as well. I only had 1 mini and it was a dog. I put too much money in it trying to get accuracy and never got under 1.5". It started out at 4", so I guess it was average when new. I later read the culprit is supposed to be the lack of a feeding ramp, from when they scaled it down. The m14 has a feeding ramp. The mini lacks one. Personally I like the look of the mini and hate the black rifles, so I just camo them.
Blessings