Colt takedown, front pin sizes, are they diff than everyone else?

[Eagle1*]

Just looking at possibly adding a Colt upper to my LMT & Bushmaster lowers and need to know if the Colt uppers are a different pin size?

[m700m]

Eagle1*, yes and no, that is to say it depends on the Colt upper itself. most LE are push pin, and commercial,:) depending on when it was manufactured may be a large pin screw type affair. either way,
Bushmaster sells an offset front pin to mate the colt upper w/large pin. i hope this helps. Don................

[Eagle1*]

I have a standard BFI serial #'ed Bushy that is waiting for an upper and i just bought a 2 stage trigger LMT complete lower that is also waiting on an upper. I need the Bushy for my cruiser at work so I was thinking of getting a 6920 upper or maybe an LMT or Noveske N4 light carbine upper for it. Decisions, decisions, :confused: