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Muzzle blast 14.5 vs.16 inch barrel

Discussion in 'Black Rifle Forum' started by Econoglocker, Jan 12, 2011.

  1. Econoglocker

    Econoglocker

    14
    0
    Jan 11, 2011
    So how much louder is the muzzle blast on a 14.5 inch barrel compared to a 16 inch? been thinking of building a 14.5 but some people have told me they are much louder. don't know if they meant with a muzzle brake though. in general are they comparable or are they completely different?
     
  2. Foxtrotx1

    Foxtrotx1

    4,036
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    Jan 29, 2010
    Scottsdale AZ
    Noticeably louder. Not nearly as bad as a 7-12.5
     


  3. Econoglocker

    Econoglocker

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    Jan 11, 2011
    yeah, I hear(no pun intended) that those really short barrels can make your ears bleed
     
  4. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
    0
    Mar 17, 1999
    Western WA
    While there may be a noticeable difference when shooting identically equipped rifles side by side, your choice of muzzle device and ammo will make a much larger difference.

    Don't let the noise factor sway your decision at all.

    FWIW I don't notice all that much difference in the noise between my 14.9" with a Phantom and my 7.5" with a KX3. (I haven't shot them back to back) I can sure tell I wouldn't want to be in front of that shorty though. It actually echos off the 25 yard berm. Loudly.
     
  5. Foxtrotx1

    Foxtrotx1

    4,036
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    Jan 29, 2010
    Scottsdale AZ
    The Kx3 puts it all forward right?
     
  6. MrMurphy

    MrMurphy ********* Moderator Moderator Millennium Member Lifetime Member

    12,972
    3
    Jan 16, 2001
    Buried in the X-files
    With an A2, no noticeable difference.

    A KX3 is meant for 10" and shorter guns. Sticking one on a 14.5 will simply announce to the world you are an idiot.
     
  7. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
    0
    Mar 17, 1999
    Western WA
    Yes. But like Mr. Murphy said, it's meant for shortys.

    I was just illustrating my point about muzzle thingys making a much bigger difference than barrel length, not recommending you put one on your rifle.
     
  8. RMTactical

    RMTactical www.AR15pro.net CLM

    12,603
    16
    Oct 7, 2000
    Behind an AR-15
    I haven't noticed a huge difference personally.
     
  9. I have a PLR with a 9.2in. it is much louder then anything else I have, 16/20
     
  10. fuzzy03cls

    fuzzy03cls

    2,856
    20
    Jan 28, 2010
    Florida
    Noise difference? Don't know. I wear hearing protection. They all sound the same to me. I have both.
     
  11. mjkeat

    mjkeat

    3,447
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    Jun 17, 2009
    Midwest
    As should everyone. Unless you're in the Mil. and want that $123 a month in exchange for your hearing.

    I have both as well and dont notice any difference. Ive even asked people at the range and they dont report any difference either.
     
  12. Alaskapopo

    Alaskapopo NRA ENDOWMENT

    6,545
    2
    Feb 6, 2000
    Alaska
    Given an the same muzzle device I can't tell a difference between the two.
    Pat
     
  13. AK_Stick

    AK_Stick AAAMAD

    17,401
    1,122
    Jan 20, 2004
    Alaska, again (for now)
    I can't tell an appreciable difference between the two.

    13.7-20 inches are all fairly close as far as sound, your choice of flash hider/comp will have more effect than the barrel length change.

    Below 13.7, you notice each inch or so quite a bit.
     
  14. Econoglocker

    Econoglocker

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    Jan 11, 2011
    Thanks everyone for your help. Hopefully in the future I will be able to pick up a lightweight 14.5 inch upper, since I want something light and handy but not deafening.
     
  15. Mayhem like Me

    Mayhem like Me Semper Paratus

    18,267
    4,158
    Mar 13, 2001
    Not a chance
    Totally dependant on what muzzle device you are using..

    Brakes are much louder than hiders for the shooter naked barrel even less noise to shooter.



    The Noveske pig and a few others spare the shooter but send more blast downrange.
     
  16. Eurodriver

    Eurodriver

    2,264
    1
    Sep 11, 2010
    I have shot at multiple ranges with sixty plus shooters shooting M16A4s (20") and M4s (14.5") and I notice zero difference. This is without hearing protection standing right in between both shooters. Of course both weapons have the A2 FH. I would think the difference from 16 to 14.5" would be nothing.
     
    Last edited: Jan 14, 2011
  17. just a shooter

    just a shooter

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    Feb 7, 2007
    well of course you don't hear a difference........you're already hearing impaired.:whistling:
     
  18. G26man

    G26man OBEY ME!

    1,902
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    Jul 8, 2004
    NC
    Doesn't mean you're an idiot if you just want to throw the sound downrange. I use this levang comp on a 16" AR, makes shooting a more pleasant experience for me and my range neighbors and if God forbid I ever have to use it without hearing protection I'll be glad it's there.

    [​IMG]
     
    Last edited: Jan 14, 2011