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Series 70 National Match

artnorgas
I recently saw a Colt Series 70 Government Model that said N.M. on the barrel. I was told that stood for National Match but it'snot a Gold Gup and I'm interested to know if Colt produced such a model or if it was "customized". It has Government Model on one side of the slide and Series 70 on the other side. Can anybody help?

Enjoy the day.....
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3 comments

Date Votes
  • perry shooter
    Hello you can never say never but I don't think that you have a colt barrel but I think you have a barrel made by Kart ,Barsto or other barrels sold through people like BROWNELLS a Gold Cup has a barrel that has a big differance from a GOV barrel . The breach face of a GOLD CUP slide has a narrow cut for the barrel HOOD a GOV slide has a wider cut a Gov barrel bushing of a series 70 GOV has spring fingers and a GOLD CUP bushing is solid and fitted to the barrel. You could exchange these parts but then there would be a GAP on one side of the barrel hood to cut in slide.Take the barrel out and see if you see any letters or numbers on it anywhere like NM7791414 or NM7790313 even a single letter or # or any mark. quote:"Praise the hardball gun"
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  • Xracer
    Yes, it stands for National Match. When the gun is in battery, you should be able to read (thru the ejection port):

    COLT .45 AUTO. N.M.
    MK.IV/SERIES'70

    If it reads exactly like that, it's a National Match barrel made by Colt.

    It should also have a matching collet-type bushing.

    Whether yours is a production gun or not, I don't know. Colt did sell these barrels aftermarket. I have one on the Pin Gun I built, and it's a very accurate barrel.
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  • JudgeColt
    I think Xracer is correct. I too have an accessory barrel I bought from Colt marked exactly as described. I used it for years in a WWII M1911A1 with an original barrel so poor I was afraid to shoot it. It is not uncommon to find these barrels in most anything. As stated, they are excellent barrels.

    I disagree with ps who says the Series 70 Gold Cup bushing is solid. A Series 70 Gold Cup has the collett bushing. Only a Pre-Series 70 Gold Cup will have a solid bushing. The accessory barrels mentioned have collett bushings.
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