undimpled barrels

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  • olde sarge
    Warrior
    • May 2014
    • 247

    undimpled barrels

    The thread on gas blocks brought up a question I have on dimpling barrels and the pros and cons. My barrel is un-dimpled and has no flat. Should I dimple it? Will dimpling cause any problems with accuracy or would I be best to just purchase a block that clamps on. I guess a case of poor forethought by a first time builder when I purchased the parts.
    Last edited by olde sarge; 12-16-2014, 07:52 PM.
  • LRRPF52
    Super Moderator
    • Sep 2014
    • 8569

    #2
    A clamp-on gas block is all you need in your situation, but a set screw works as well, when Red loc-tite is used. I have plenty of guns without the dimples, using set screw blocks.
    NRA Basic, Pistol, Rifle, Shotgun, RSO

    CCW, CQM, DM, Long Range Rifle Instructor

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    • olde sarge
      Warrior
      • May 2014
      • 247

      #3
      Thanks LRRPF52, thought I had best ask and get it right the first time. Will save the set screw block so I have an excuse to build another upper later.

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      • jurassic
        Warrior
        • Sep 2014
        • 246

        #4
        The only time no dimple may cause a problem is removing the gas block. A burr may be raised by the set screw making it harder to get the block off.

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