Pennsylvania Firearm Owners Association
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  1. #101
    Join Date
    Dec 2011
    Location
    INNA DA WOODS, Pennsylvania
    (Wayne County)
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    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    The carrier looks ok. After a brief history read on the Rhino, that key may be of inferior metal anyway. You could get a new key, add a seal of permatex if you want, use some grade 8 screws and stake it down.
    I always sleep with my guns when you are gone

  2. #102
    Join Date
    Feb 2007
    Location
    next to my neighbor, Pennsylvania
    Posts
    13,589
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    21474867

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Quote Originally Posted by Splittiebus66 View Post
    The carrier looks ok. After a brief history read on the Rhino, that key may be of inferior metal anyway. You could get a new key, add a seal of permatex if you want, use some grade 8 screws and stake it down.
    Yeah I thought I could use it. Too late now though, I followed the instructions from some ar15 website
    abut torquing the screws (30lbs) well I got to 15lbs and snapped a screw. I need a good drill bit,
    the ones I have are junk and wont drill it out. I'll put that one to the side and buy a mew BCG, screw it.

  3. #103
    Join Date
    Mar 2014
    Location
    NEPA, Pennsylvania
    (Wyoming County)
    Posts
    2,320
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    21474849

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Came across this article regarding barrel selection and hoped it might help someone else as much as it has me.

    https://everydaymarksman.wordpress.c...art-2-barrels/
    "It seems that the Constitution is more or less guidelines than actual rules"
    My feedback: http://forum.pafoa.org/showthread.php?t=305685

  4. #104
    Join Date
    Apr 2008
    Location
    Beaver, Pennsylvania
    (Beaver County)
    Posts
    1,833
    Rep Power
    5431274

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    https://youtu.be/pyYODtiohzQ

    Long but good insight on the AR. I listened to it over a handful of work commutes.

  5. #105
    Join Date
    Jan 2009
    Location
    Newport, Pennsylvania
    (Perry County)
    Age
    58
    Posts
    5,228
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    21474857

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Alright AR gurus. I put together a .300blk pistol. After the last round is fired, the BCG comes forward and overrides the bolt-hold-open part way. It is scraping the bottom of the BCG fairly significantly. The bolt slams home upon dropping the mag. I'm assuming it's a buffer/buffer spring weight issue. Thoughts?
    "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

  6. #106
    Join Date
    Jun 2009
    Location
    Apollo, Pennsylvania
    (Armstrong County)
    Age
    44
    Posts
    1,748
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    17761069

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Sounds over gassed for first guess.
    Also check your bolt catch and spring, make sure they move freely and spring is working.

    What spring, buffer, gas location, gas port size?
    Subs or supers?
    Can or no can?
    HGW, llc ~ Title 1 & NFA sales/manufacturing ~ Transfers - Title 1 $20 - NFA $50

  7. #107
    Join Date
    Jan 2009
    Location
    Newport, Pennsylvania
    (Perry County)
    Age
    58
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    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Quote Originally Posted by Nate7667 View Post
    Sounds over gassed for first guess.
    Also check your bolt catch and spring, make sure they move freely and spring is working.

    What spring, buffer, gas location, gas port size?
    Subs or supers?
    Can or no can?
    Pistol length gas system.
    Carbine buffer/spring
    supers
    no can

    If it's too much gas, it's an easy fix. It has an adjustable gas block.

    This is my first .300blk, I guess it's designed for a wider range of gas. It's a preassembled Aero upper.

    Thanks
    "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. #108
    Join Date
    Jun 2009
    Location
    Apollo, Pennsylvania
    (Armstrong County)
    Age
    44
    Posts
    1,748
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    17761069

    Default Re: All things AR-15 and variants from newbie to advanced. Find answers here.

    Yup, start there.
    Close the gas block settings. Open 1 or 2 clicks and fire away while adjusting it open until function and lock back.

    Probably set to run subs right now. Much less pressure with those.
    HGW, llc ~ Title 1 & NFA sales/manufacturing ~ Transfers - Title 1 $20 - NFA $50

  9. #109
    Join Date
    Jun 2014
    Location
    Middle of PA, Pennsylvania
    Posts
    7,554
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    21474853

    Default Re: AR Building, Accurizing, Tips & Tricks

    Getting ready for my first build. Please explain barrel twists to me. I see 1:7, 1:8 and 1:9 variants. What does it mean, why should I care, and what should I get?
    Galations 6:9...And let us not grow weary of doing good, for in due season we will reap, if we do not give up.
    Ashli Babbitt - Patriot

  10. #110
    Join Date
    Jan 2009
    Location
    Newport, Pennsylvania
    (Perry County)
    Age
    58
    Posts
    5,228
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by alpacaheat View Post
    Getting ready for my first build. Please explain barrel twists to me. I see 1:7, 1:8 and 1:9 variants. What does it mean, why should I care, and what should I get?

    Bullet Weight Twist
    40-Grain 1:12
    55-Grain 1:9
    62-Grain 1:8 or 1:7
    77-Grain 1:7 or 1:8
    80-Grain 1:7

    1:8 is the go to barrel for the most versatility. If you're building for supreme accuracy, look for a barrel that is best for your chosen bullet grain.
    "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

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