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Dating an AR-15 mag ?

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6 comments

  • nmyers
    Yes, save your receipt from the gun shop. He is a NY licensed dealer, & would not have sold you anything illegal.

    Neal
    0
  • Laredo Lefty
    Welcome to the forums.

    "IF" it ever became an issue, the burden of proof would be on the authorities to prove the mag is illegal, not upon you to prove its legal.

    Given the info you provided, I suspect the DOB cannot be determined.
    0
  • XP100
    I have heard some post ban magazines have a date code on the inside. I never had any to take apart to check. That is why I do not like to sell high capacity mags in my shop in NY.
    0
  • 0
  • JudgeColt
    Any Colt magazines with the floorplate marked ".223" instead of "5.56" would be "Pre-Ban," since that change was made in the late 1960s or early 1970s as I recall.
    0
  • dcs shooters
    About 1970-71 the floor plate was change to read 5.56.
    Go to www.biggerhammer.net and look up AR-15 specs. Under it you will find magazine faqs.
    0

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