01-18-2018, 04:26 AM
bj139 Wrote:I mentioned Colt set the spec to .136" for the bolt face because that's what I read here and elsewhere.
I don't think this is mil spec since the military did not adopt the Grendel. Maybe it is "Colt spec".
And this is an interesting tidbit along with what Vascar posted. I think I also read about this design in one of the sticky threads but forgot about it. Smart move by colt and AA if you ask me.

