Who gets the closest to mil-spec?

[BlitzKrieg]

Who gets closest to milspec on M14/M1A: LRB,Fulton Armory, Springfield Armory ? Probably none are true milspec but way good enough.

I think you'll find tiers of goodness in AR platforms with the deciding factors being better quality barrels, bolt carrier groups and trigger / hammers. Rest of parts pretty much the same across the brands.

[S.B.]

I would have to venture a guess is Colt, I mean they did make them both select fire and semi auto for our military?
Steve