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Thread: Used Colt Barrel

  1. #11
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    Quote Originally Posted by Krazykarl View Post
    I found a local gunsmith willing to take this on. Now for the hard part. Finding all of the parts for the upper and lower.
    It is possible, this place does the used pin holes work.

    https://www.ar15barrels.com/services.shtml

  2. #12
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    20231228_142528.jpg
    Colt barrel
    Colt FSB
    Colt gas tube
    Colt delta ring assembly
    Colt charging handle
    Colt A2 grip
    Colt handguard cap
    Colt flash hider
    Colt handguard set
    Rock river arms front swivel mount
    Brownells C7 upper
    Brownells A1 sight
    Palmetto state armory dust cover
    Palmetto state armory forward assist
    Palmetto state armory trigger guard
    Brownells buffer tube
    Sprinco buffer spring
    SOLGW rifle buffer
    Aero precision lower, X15,
    Sionics LPK and enhanced trigger
    Magpul moe stock
    Toolcraft phosphated BCG

    I pinned the front sight base for him. My 12 year old assembled it. It required 2 clicks of windage for a true 273 yard (250m zero)

    Good work kid!!
    Last edited by Krazykarl; 12-28-23 at 14:40.

  3. #13
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    Quote Originally Posted by 556Cliff View Post
    Unfortunately that's not the case. A random take off FSB stands almost no chance of it's taper pin holes lining up with the taper pin holes on a random barrel where the FSB was removed. Even if they were both Colt parts it would be the equivalent of winning the lottery.

    It might be possible for ADCO or Retro Arms Works to do something to get this to work, but even they might not want to mess with it. Wouldn't hurt to ask though.
    Well, that is good information to know. Quite surprising I might add also, considering Colt should be using jigs set up for barrel drilling etc.....

  4. #14
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    It really was not that hard. Small round file from my die makers set, taper reamer, and lots of bore sighting and being patient.

  5. #15
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    That's impressive. Did you start with an FSB that has some sort of pin holes to begin with?
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  6. #16
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    The barrel was already drilled for a FSB that I did not have. I bought a used complete FSB. The holes were very close. By eye ball, I knew this could work. By measure, 0.020 inches of barrel to remove before the taper reamer could be used.

  7. #17
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    Nice!
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  8. #18
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    Hopefully the trigger reset improves. It is lubed and the builder has been dry firing. But sometimes the reset will not push the trigger forward. Range time tomorrow.

    I know the upper is good. I cheated on my son while he was at school. I put his upper on my existing colt m16a4 lower to zero it.

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