AR barrels

Discussion in 'The Pre-Ban Forum' started by Bobitis, Oct 18, 2009.

  1. Bobitis

    Bobitis Guest

    What's with the necked down portion in the middle of the barrel?
  2. LurpyGeek

    LurpyGeek Active Member

    Nov 30, 2005
    You're referring to the stepped portion in front of the front sight post?


    It's there to accommodate the mounting of an M203 grenade launcher.

    Last edited: Oct 18, 2009

  3. Bobitis

    Bobitis Guest

    We couldn't make a grenade launcher without doing that?

    Seems like a point of failure.:eek:

    Glad mine are Hbars.:)
  4. LurpyGeek

    LurpyGeek Active Member

    Nov 30, 2005
    I believe on the full 20 inch versions, that step is under the handguard, so it is never seen.
  5. hayes1966

    hayes1966 New Member

    Aug 20, 2009
    Central Connecticut
    I would be more concerned with the trigger, it does not reset all the time and the firing pin remains out. The rounds go off when loading them.
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