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AR -15 Lower Receiver weirdness...Judge Colt?

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5 comments

  • nmyers
    I have an SP1 that was made at about that same time, & it looks identical to yours. Even the upper looks slightly "grainier" than the lower, just like yours, & the serial # digits are slightly lower than the "SER SP1". Yes, they were parked after the markings were applied.

    There were several changes in the stamped markings throughout production of the SP1. From what I see in the picture, yours looks righteous. I believe that the lowers were cast, not machined.

    Neal
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  • mateomasfeo
    Thanks Neal!

    It looks like it was ground down before it was logo-stamped and after it was cast. Its not just grainey, I can see where something ground that area down. The metal looks thinner on that wall of the mag well when view from above looking down into the mag well...Perhaps it was a defect in the mold that was repaired by factory after casting...seems unlikely...would Colt do that?

    Maybe I am just paranoid...

    Mateomasfeo

    "I am what I am!" - Popeye
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  • mateomasfeo
    Woops! Here is a better angle...

    ReceiverTopAngle.JPG

    Mateomasfeo

    "I am what I am!" - Popeye
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  • JudgeColt
    As Mr. Myers has stated, the rifle and markings appear normal for the time. The quality of the machining varied from rifle to rifle, and some show stray machining marks as does this one. Fine finish was not a requirement for military rifles.

    All the references to the receiver being cast are incorrect. The Colt receivers are forged, not cast. Many of the cheap clones are cast, with those with raised lettering being the most obvious.
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  • mateomasfeo
    Thanks Judge! I knew I could count on you.

    For sale for 1225. Otherwise excellant condition. What do you think?



    Mateomasfeo

    "I am what I am!" - Popeye
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