I came across a '70 series barrel and it has the distinctive yellowish hue/tint of nickel. I know Colt produced nickel plated '70 series 1911s but I can't tell for certain if the barrel is nickel also. Anyone know about this?
Though not regular production, my elctroless nickel Colt Government, purchased new, did have a have a nickeled barrel. I replaced it with a Bar-Sto. So even though I don't have the gun anymore, I still have the old electroless nickeled barrel.
The barrel in a satin nickel-plated pre-80 Combat Commander I once owned was also nickeled, so it's probable that they did the same with the Government Models, at least for a time. I held onto the barrel for several years after I upgraded it to a Bar-Sto in the Commander.