Pennsylvania Firearm Owners Association
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  1. #1
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    Default All things AR-15 and variants from newbie to advanced. Find answers here.

    This is the place to learn AR basics, to build an AR, keep it running and get the most out of it. Check the links below to see if your question has been asked and answered. You may also post a question that you can't find an answer for.

    To get things started, here are a couple of videos from Midway on building an AR.




    Below are links to threads discussing ARs. Some are more valuable than others.

    AR PORN!
    http://forum.pafoa.org/gun-pictures-...ures-here.html

    Offsite basics for the newbie.
    http://forums.officer.com/t81462/

    Newbie advise thread.
    http://forum.pafoa.org/rifles-42/274...ds-advice.html

    Discussion about poor AR quality.
    http://forum.pafoa.org/rifles-42/270...ally-suck.html

    Torture testing at a rental range. Long read but some great info.
    http://www.ar15.com/forums/t_5_4/160...ervations.html

    Feed ramp mismatch due to different manufacturers.
    http://forum.pafoa.org/rifles-42/270...ramps-fml.html

    Some parts resources for a specific build.
    http://forum.pafoa.org/rifles-42/271...-a2-clone.html

    First AR.
    http://forum.pafoa.org/rifles-42/270...buying-ar.html

    Muzzle devices.
    http://forum.pafoa.org/rifles-42/271...le-device.html

    Muzzle device removal.
    http://forum.pafoa.org/rifles-42/269...e-removal.html

    Bolt hold open.
    http://forum.pafoa.org/rifles-42/268...round-why.html

    Stripped lower discussion.
    http://forum.pafoa.org/rifles-42/269...r-project.html

    .22 LR ARs.
    http://forum.pafoa.org/rifles-42/269304-ar-22-a.html

    AR barrel discussion.
    http://forum.pafoa.org/rifles-42/268...rrel-help.html

    AR pistol problem.
    http://forum.pafoa.org/rifles-42/268...here-help.html

    AR mags.
    http://forum.pafoa.org/rifles-42/266968-ar-mags.html

    Buffer weights.
    http://forum.pafoa.org/showthread.ph...=buffer+weight

    Cleaning your AR.
    http://forum.pafoa.org/rifles-42/173...e-ar-15-a.html

    Barrel material and treatments.
    http://forum.pafoa.org/showthread.php?t=323027
    Last edited by unclejumbo; July 6th, 2017 at 09:53 AM.
    "A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself"

    "He created the game, played the game, and lost the game.... All under his own terms, by his own doing." JW34

    "Tolerance is the lube that helps slip the dildo of dysfunction into the ass of a civilized society." Plato

  2. #2
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Great, we can turn this into a min-arfcom.

    Get a Windham rifle

    /thread

  3. #3
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Finally...me putting words into your mouth worked!

    I have some things I'll add later today.
    Quote Originally Posted by dkf View Post
    Official Gun Bully and corn flakes pisser inner since March 2007.

  4. #4
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by RXM View Post
    Great, we can turn this into a min-arfcom.

    Get a Windham rifle

    /thread
    NEVER, I will delete all sniping at one another or snipe to delete those that can't behave.

    Anyway, lets try to keep it on track. If we have a bitch about a manufacturer, be specific and include pics. Don't use, "they're junk" and think that's a positive contribution to the thread. None of us want to buy something and learn we screwed the pooch so legitimate warnings about quality are appreciated.

    The other thing I will do on occasion is go through and delete chatter. No reflection on anyone but I'm sure someone looking for information isn't going to want to read pages of purple nurples and wet willies.
    Last edited by unclejumbo; December 2nd, 2014 at 01:15 PM.
    "A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself"

    "He created the game, played the game, and lost the game.... All under his own terms, by his own doing." JW34

    "Tolerance is the lube that helps slip the dildo of dysfunction into the ass of a civilized society." Plato

  5. #5
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    Default Re: AR Building, Accurizing, Tips & Tricks

    There are a few things that you can do to increase accuracy out of your gun (removing the shooter as a variability).

    1. Quality barrel
    2. Upper receiver that has a tight fit to the barrel extension. The barrel extension should not easily slip in and out of the receiver.
    3. Bolt
    4. Free float rail

    To get precision out of the gun, the shooter has to become consistent and a good trigger will help you do that.

    Good tip if you want to check your rifle's accuracy. If you're doing a 5-round group (as you should be doing), put a cheap 6th round in there and pop it off into the berm before you do your grouping. Part of precision is consistency and this allows the BCG to cycle the same from 1st to 5th round. This was taught to me by a guy that knows a thing or two about murdering things from far away.
    Last edited by RXM; December 2nd, 2014 at 01:18 PM.

  6. #6
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by unclejumbo View Post
    NEVER, I will delete all sniping at one another or snipe to delete those that can't behave.

    Anyway, lets try to keep it on track. If we have a bitch about a manufacturer, be specific and include pics. Don't use, "they're junk" and think that's a positive contribution to the thread. None of us want to buy something and learn we screwed the pooch so legitimate warnings about quality are appreciated.
    You're starting to set ground rules. First rule of arfcom-mini is that there are no ground rules!

  7. #7
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    Default Re: AR Building, Accurizing, Tips & Tricks

    As I've posted previously.

    An easy way to align the gas block on the barrel is to get a piece of silicon fish tank tubing and force it on the bolt end of the gas tube. By blowing through it while moving the gas block, you can find the point of maximum gas flow.
    "A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself"

    "He created the game, played the game, and lost the game.... All under his own terms, by his own doing." JW34

    "Tolerance is the lube that helps slip the dildo of dysfunction into the ass of a civilized society." Plato

  8. #8
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by unclejumbo View Post
    As I've posted previously.

    An easy way to align the gas block on the barrel is to get a piece of silicon fish tank tubing and force it on the bolt end of the gas tube. By blowing through it while moving the gas block, you can find the point of maximum gas flow.
    Never tried this but it makes sense. My method for aligning the gas block is using a fine tip sharpie and marking the hole on the shoulder of the barrel and doing the same on the gas block and lining them up. I'll have to try it your way and hopefully I don't get funny looks from the wife.

  9. #9
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by unclejumbo View Post
    As I've posted previously.

    An easy way to align the gas block on the barrel is to get a piece of silicon fish tank tubing and force it on the bolt end of the gas tube. By blowing through it while moving the gas block, you can find the point of maximum gas flow.
    ...or you could fixture it up in your Hurco and index it perfectly, then use a ball mill to dimple it exactly 180 degrees opposite from the gas port

    I'm actually working on a tool that will alleviate all that work (setting it up in a machine). It will be simple. I don't know if I'll manufacture and sell it, if I did, it'd be cheap.
    Quote Originally Posted by dkf View Post
    Official Gun Bully and corn flakes pisser inner since March 2007.

  10. #10
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    Default Re: AR Building, Accurizing, Tips & Tricks

    I just use a BRDE dimpling jig. Before dimpling I just check with calipers to ensure the distance of the set screws is the same on the gas block as it is with the dimple holes on the jig. I only put one dimple in unless they are identical. Only time this won't work is if you're using a clamp on.

    Standard bi-metal bit for a phosphate coated barrel and a straight flute carbide bit for Melonite/Nitride barrel.

    Hasn't failed me yet.

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