So here are some pics of the uppers, BCG & Charging Handles
I will double check to make sure the O ring is installed. Thanks.
As I stated above, I mated these up with my Superior lowers that I am using with my Stag uppers. They fit very nice. I also have 2 LAR Grizzley lowers just sitting in the safe. Did not get a chance to mate those up last night. I like the Superior lowers because they have the screw adjustment to tighten up the trigger so there is no slack.