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Thread: Question of Length- Cutting an M4 Barrel

  1. #1
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    Question of Length- Cutting an M4 Barrel

    If an M4 barrel were cut & threaded to remove the M4 notch, would the barrel length come out to 10.5 inches?
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    I think it works at 11.5 and 12.5.
    Black River Tactical
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  3. #3
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    Quote Originally Posted by MistWolf View Post
    If an M4 barrel were cut & threaded to remove the M4 notch, would the barrel length come out to 10.5 inches?
    Why would you want to do this?

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    I didn't think you could cut a chrome lined barrel and get a good crown on it.

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  5. #5
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    Also how would you redo the gas system?

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  6. #6
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    After labor costs and all, why not just buy a new barrel?

  7. #7
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    Yes, you can cut a chrome-lined barrel and get a good crown- no problem at all.

    If you already own the barrel, cutting means you get the barrel you want for less than $100, instead of dropping another $250-$300 for it.

    And to the OP, yes- the notch is eliminated and does not affect you with a cut to 10.5. As indicated above, you can even squeeze an 11.5 out (not sure about 12 without looking- I've not done one).

    Edit - Missed the gas port - it's a pretty easy thing to open up the gas port. No other change is needed.
    Last edited by Dead Man; 10-12-13 at 12:07.

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    Quote Originally Posted by Dead Man View Post
    Wow.. a lot of fail in this thread.

    Yes, you can cut a chrome-lined barrel and get a good crown- no problem at all.

    If you already own the barrel, cutting means you get the barrel you want for less than $100, instead of dropping another $250-$300 for it.

    And to the OP, yes- the notch is eliminated and does not affect you with a cut to 10.5. As indicated above, you can even squeeze an 11.5 out (not sure about 12 without looking- I've not done one).

    Edit - Missed the gas port fail - it's a pretty easy thing to open up the gas port. No other change is needed.

    The issues raised were perfectly reasonable for the most part, so the "a lot of fail" comment was unwarranted. While you would be likely to save some money after all is done you still risk a less than ideal outcome.

  9. #9
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    Quote Originally Posted by Safetyhit View Post
    The issues raised were perfectly reasonable for the most part, so the "a lot of fail" comment was unwarranted. While you would be likely to save some money after all is done you still risk a less than ideal outcome.
    Fixed.

    However, what less than ideal outcome is possible?
    Last edited by Dead Man; 10-12-13 at 12:08.

  10. #10
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    Quote Originally Posted by Dead Man View Post
    Fixed.

    However, what less than ideal outcome is possible?

    Fixed what? You quoted me verbatim.

    The less than ideal possible outcomes could include an uneven crown or a misaligned gas port.

    Edit: Never mind the first part, I see you corrected the initial statement. Fair enough.
    Last edited by Safetyhit; 10-12-13 at 12:30.

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