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Thread: M4A1 "heavy" barrel...useless?

  1. #21
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    For a given length of barrel, the heavier profile barrel will be stiffer.
    Barrel harmonics are improved.
    Also, the heavy barrel's increased mass will allow it to absorb more heat before overheating. Good for full-auto, and rapid shooting for longer time periods.

    Yes, the greater mass of the heavy barrel will take longer to cool, but it also has greater surface area from the larger diameter. That increased surface area will allow a faster cooling rate than a skinny barrel, so the actual time for cooling may not be as vastly different as some surmise.

    Most people who understand what different barrels can do, will know what barrel they want.

    The rest of the market is influenced by "fads" which come and go. 10 years ago, everyone wanted heavy barrels and you couldn't give away a gov't profile barrel. 2 years ago, most people wanted the lightweight barrels, and heavy barrels didn't sell nearly as well, and some people went so far as to say that they were only made for cost-saving purposes to save the manufacturer money on machine time.
    Now, I'm seeing a trend toward "midweight". Probably because after the lightweight trend, people experienced the shortcomings of the lightweight barrels on their last build, so they are "inching" back toward the heavy barrel.

  2. #22
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    Quote Originally Posted by M4Guru View Post
    I have not seen a "non-SOCOM" profile barrel since 2002 in any SOF unit. We do not have the option of carrying the lighter barrel, we only have heavy M4 barrels in our arms room. When I shoot out one barrel, I get another heavy barrel. I don't get to pick at that point either.

    TOS is stupid (again)
    Same here also, all of our barrels are heavy. We have still have a few burst guns left but most are auto guns.

  3. #23
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    Do you guys that use the M4A1 notice the heavier weight?

    Besides overall weight, does it effect balance or other aspects of handling any?

  4. #24
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    There is a unfired Socom barrel for sale on TOS. Asking price is $499

  5. #25
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    Quote Originally Posted by wild_wild_wes View Post
    Do you guys that use the M4A1 notice the heavier weight?

    Besides overall weight, does it effect balance or other aspects of handling any?
    I don't notice any difference. But I'm comparing it to my 16" 6920 that is set up identically to my issue weapon so, it probably evens out in the wash.

  6. #26
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    What is TOS?

  7. #27
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    Quote Originally Posted by Lawdog-1 View Post
    What is TOS?
    The Other Site
    Randall Rausch
    AR15 Barrel Guru

  8. #28
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    You are talking about AR15.com.

  9. #29
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    Quote Originally Posted by Lawdog-1 View Post
    You are talking about AR15.com.
    Yes we are.
    Randall Rausch
    AR15 Barrel Guru

  10. #30
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    Quote Originally Posted by Lawdog-1 View Post
    What is TOS?
    It's a TLA. Has more CDI. Quicker to type than the Harry-Potter-esque "The Site That Shall Not Be Named." TOS < TDS

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