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Colt 1911a1 flat mainspring housing

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8 comments

  • nmyers
    I thought that the flat MSH's that Colt used post-war were smooth, like this Colt John Browning commemorative.
    coltjohnbrowningMSH.jpg
    But, I haven't studied this area, so maybe someone with a comprehensive Colt collection can give us more information. I guess, technically, the guns with a flat MSH, like the 1991 series, could be called "1911 type", not "1911A1 type".

    Neal
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  • perry shooter
    The only Two colts I have with flat mainspring housing that are serrated are a Pre series 70 Gold Cup and a series 70 Gold Cup Both have 7 ribs I am sure with the number of Clones and aftermarket parts you could find just about any thing as far as rib count. You can always take a 7 rib arched and mill it with a flat contour and use a metal checkering file to connect the two ends of the original ribs.
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  • celse
    Neil
    The key word so to speak is 1911A1 you gun, shown is a 1911 which had a flat "smooth" housing just as did the original 1911 Colt pistol, with the exception of the absents of a lanyard loop. celse
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  • celse
    oops! I now see you loop! LOL
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  • WWllVet
    aaif it has a FLAT main spring houseing, IT IS NOT AN A-1, it is a 1911.

    For GOD and COUNTRY

    Not as Lean[:D][:D]2X as Mean[:(!][:(!]But STILL a MARINE[}:)][}:)]

    Vet
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  • perry shooter
    WW II vet I think this person is looking at civilian model pistols . It is true that once the military went to the arched mainspring housing they never went back to the flat one. HOWEVER the civilian POST WW II Civilian models that were 1911A1 style framed Gold Cup pistols did come with a flat mainspring housing but it was grooved .
    More then likely this person wants a Gold Cup housing He has a post on the WTB forum.
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  • celse
    In 1957 Colt came out with the National Match 45acp. It came with a flat serrated mainspring housing. They had seven serration, another word for serrated is grooved. I am needing an older fart than I am who lived 1911a1 guns in the 70's and 80's who remembers. In all likely hood the 9 ribbed (serrated) housing is aftermarket with the 8 ribbed being from Springfield Armory Inc. Or visa versa!
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  • perry shooter
    As far as I remember The essex and Ranger were the first after market frame available . There were no makers of 1911A1 other then Colt I think between 1945/6/7 until 1985 when Springfield Armory Geneseo started importing them from Brazil.This today is Springfield INC but has NOTHING but the name in common with Springfield Armory that made 1911A!'s for the US MILITARY. The Military Armory never made 1911A1 to sell directly to civilians.Now we have dozens of makers of CLONE 1911A1.Including Rock Island Arsenal made in asia and again no connection what so ever with the U.S. military arsenal of the same name. Hell you could most likely get a flat grooved mainspring with any thing between 5 and 25 grooves.Very few people care. The main collector interest is Military built Pistols from many different makers and The COLT CIVILIAN models.
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