Pennsylvania Firearm Owners Association
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  1. July 7th, 2013, 02:16 PM #1
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    Indomitable978
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    Default Old Colt Magazines

    My Dad just bought a Colt Model 1903 and we were wondering why the very top of the magazine is unfinished, in the white. The seller told us that all old Colt magazines are this way. Anybody know why?
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  2. July 7th, 2013, 03:02 PM #2
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    Default Re: Old Colt Magazines

    The particular blueing process used by Colt on their mags back in the day was thought to be detrimental to spring steel that would be under regular or constant load. The mag lips were not blued because Colt did not want the properties of the steel in the area of the mag lips to be negatively affected. The mag bodies were not the issue; they didn't want the feed lips to crack.

    Noah
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  3. July 7th, 2013, 03:05 PM #3
    cdi
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    Default Re: Old Colt Magazines

    That's the ticket-
    Differential heat treatment.
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  4. July 7th, 2013, 03:25 PM #4
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    Default Re: Old Colt Magazines

    Quote Originally Posted by Noah_Zark View Post
    The particular blueing process used by Colt on their mags back in the day was thought to be detrimental to spring steel that would be under regular or constant load. The mag lips were not blued because Colt did not want the properties of the steel in the area of the mag lips to be negatively affected. The mag bodies were not the issue; they didn't want the feed lips to crack.

    Noah


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  5. July 7th, 2013, 08:17 PM #5
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    Default Re: Old Colt Magazines

    Quote Originally Posted by Emptymag View Post
    Old people always have an answer for everything.




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  6. July 7th, 2013, 08:52 PM #6
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    Default Re: Old Colt Magazines

    Quote Originally Posted by Noah_Zark View Post
    The particular blueing process used by Colt on their mags back in the day was thought to be detrimental to spring steel that would be under regular or constant load. The mag lips were not blued because Colt did not want the properties of the steel in the area of the mag lips to be negatively affected. The mag bodies were not the issue; they didn't want the feed lips to crack.

    Noah
    Thanks, Noah. Never would have guessed it.
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