These all 16? Have any pinned and welded 14.5s?
Is the barrel twist 1:7?
Andy: I was in on Saturday and talking to you about putting one of your uppers (on my Engage lower). I already have a full built Engage but wanted this one to be a bit lighter. You showed me a new barrel (still in the bag and all greased up) that would be lighter weight. Am I correct in assuming this is not the same?