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AR15 barrel length?

Discussion in 'GATE AR-15 Forum' started by Jack Worm, Dec 9, 2010.

  1. Jack Worm

    Jack Worm

    225
    0
    Jul 20, 2003
    Sweden
    (I searched but came up empty)

    What barrel lenght should I go with if bying a AR15?

    The gun would be used as 1) a recreation gun for accuracy plinking out to 300m 2) and for some IPSC matches, the most important for me would be accuracy.

    I own a Remington 700 Police in 26" .308 and I dont want the AR15 to be all that far behind (out to 300m anyway) when it comes to accuracy. But with such a long .308 it could be nice with a bit smaller 5,56 rifle :)

    The options are 16 and 3/4, 18 or 20 inches.

    Any input?

    /JW
     
  2. Constructor

    Constructor Moderator

    552
    5
    Dec 10, 2009
    Roaming
    16" is by far the most popular length, you will gain apx 20fps/inch of barrel length so a 20" may be 80fps faster than a 16". If going with a 16" try a mid length gas system, if the rifle is over gassed like many carbines are it can hurt accuracy.
     


  3. Jack Worm

    Jack Worm

    225
    0
    Jul 20, 2003
    Sweden
    And accuracy wouldt suffer that much from a 16 3/4" barrel out to 300m, just loosing a little speed and faster drop of the bullet?

    /JW