I have had it to the range only a few times. With the old trigger at 50 yards I had groups well within 1/2". The wilson trigger felt so much better than the old one,, CMMG kit trigger, but that was in dry fire only. I have not had time to get to the range with it since dropping it in. Sorry for not having a bunch of specs on it. I started with the lower which was in the white, the upper was an aerotech in the white as well. The lower parts kit was a CMMG. The barrel is free floated and don't know what kind of free float tube or barrel was used. I do know they weren't cheap :-) The BCG was a nitride coated assembly. I went with a gunsmith because I lacked the tools to properly assemble it. The Smith also interjected some thoughts on its construction that enhanced the outcome. I couldn't be happier with the results.