Issue with Colt Mustang

Issue with Colt Mustang

This is a discussion on Issue with Colt Mustang within the General Firearm Discussion forums, part of the Related Topics category; Took the wife to the range for the first time this week. Put several guns in her hand to see what she liked and what ...

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Thread: Issue with Colt Mustang

  1. #1
    Member Array wrainsberger's Avatar
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    Issue with Colt Mustang

    Took the wife to the range for the first time this week. Put several guns in her hand to see what she liked and what she could hold on to. Needless to say for her first time out she didn't like the .45's I own. She did like my Colt Mustang as well as a Ruger Sp101 w/ .38sp loads.

    Upon firing several magazines through the Mustang, it failed to lock back after the last round of the magazine several times. What could cause this to happen?


  2. #2
    Member Array Wisewolf's Avatar
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    I believe most of the time the mags are to blame for the slide not locking back.

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  3. #3
    Member Array Eaglebeak's Avatar
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    As Wisewolf mentioned, failure of the slide to lock back on the last round is generally a magazine problem if you're using aftermarket magazines. If your magazine(s) are genuine Colt, then disassemble the gun and look carefully at the slide lock itself to see if there's a piece chipped off. If all looks good, then I'd recommend a trip to the gunsmith.

  4. #4
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    Also take a look at the follower in the magazine. On the left side the follower there is a small lower shelf, if that is bent down slightly it will not engage the slide stop and the slide will not lock back.
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  5. #5
    Senior Member Array theskunk's Avatar
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    Take the slide off and replace the slide stop pin, now insert the magazine. The mag lip will need to push the slide-stop up.

    It's either a bad mag feed lip (99%) or a worn slide stop

  6. #6
    Senior Member Array Haywood's Avatar
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    It's a message from the beyond, let her have the SP101. Especially if she is going to carry.

  7. #7
    Member Array wrainsberger's Avatar
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    I haven't disassembled and cleaned it yet. Been at work since we returned. Thanks for the advice, I'll take a look at those areas. It's actually the original magazine that came with the pistol. So, it may be worn.

    Though she liked the SP101, she really didn't like the trigger pull. The distance from grip to finger tip was just too far. Just not comfortable for her to pull.

  8. #8
    sgb
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    VIP Member Array sgb's Avatar
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    Possibly her grip (interfering with the slide stop) or worn out magazine spring
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  9. #9
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    Thumb on the slide lock.
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  10. #10
    VIP Member Array CLASS3NH's Avatar
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    I think you need to send that ol decrepid Mustang to me, so I can give it a good home. Please don't try to fix it, as I will take it off your hands. LOL....just kidding you here. Actually what MSgt said may very well be true. Take a look at the Mag follower, there should be a step on one side of the follower and it might be bent downward. if it is, take a pair of needle nose pliers and CAREFULLY bend it upward ever so slightly, so the slide stop engages. Do this until the slide stop engages (it's common to see this lip get bent slightly over the years. If you can't get it to work, you have two choices, one is to send me the gun and I'll give it a good home, OR try a Sig P238 Mag in the gun (they're basically the same mag design)
    Let us know how you make out.
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  11. #11
    Senior Member Array Haywood's Avatar
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    Rent a LCR 357. Let her shoot it with standard 38spl. work up to 38+P.

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