Pennsylvania Firearm Owners Association
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  1. #21
    Join Date
    Mar 2007
    Location
    Kepler-22b
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    2946385

    Default Re: AR Building, Accurizing, Tips & Tricks

    Well, until someone can prove the metrics on pinned vs set screw, I'm not losing sleep over it. Sure, pinned is more secure, but I haven't had any set screws walk out.
    Quote Originally Posted by dkf View Post
    Official Gun Bully and corn flakes pisser inner since March 2007.

  2. #22
    Join Date
    Apr 2011
    Location
    Erie, Pennsylvania
    (Erie County)
    Posts
    433
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    12017482

    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by RXM View Post
    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.
    Check out a guy named Joe Carlos he has some excellent build tips and covers the reason that the upper and barrel extension can have an effect on accuracy.

  3. #23
    Join Date
    Dec 2011
    Location
    INNA DA WOODS, Pennsylvania
    (Wayne County)
    Posts
    2,098
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    Default Re: AR Building, Accurizing, Tips & Tricks

    If you use set screws you can acquire Rocksett from silencer shop in single dose packets for just a few bucks and free shipping.


    http://www.silencershop.com/shop/rocksett/



    Mcmaster Carr pt. 90289A337, I've seen these screws recommended several times in my research on the subject....looks like it would do the job well?

    Last edited by Splittiebus66; December 3rd, 2014 at 12:13 AM.
    I always sleep with my guns when you are gone

  4. #24
    Join Date
    Mar 2007
    Location
    Kepler-22b
    Posts
    3,759
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    2946385

    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by Splittiebus66 View Post
    If you use set screws you can acquire Rocksett from silencer shop in single dose packets for just a few bucks and free shipping.


    http://www.silencershop.com/shop/rocksett/



    Mcmaster Carr pt. 90289A337, I've seen these screws recommended several times in my research on the subject....looks like it would do the job well?



    McMaster-Carr is one of my favorite distributors. They have something for everything.
    Quote Originally Posted by dkf View Post
    Official Gun Bully and corn flakes pisser inner since March 2007.

  5. #25
    Join Date
    Oct 2008
    Location
    Hueco Mundo, Pennsylvania
    (Montgomery County)
    Posts
    2,064
    Rep Power
    604451

    Default Re: AR Building, Accurizing, Tips & Tricks

    Any serious working gun should have the gas block pinned to the barrel.

  6. #26
    Join Date
    Feb 2014
    Location
    Scranton, Pennsylvania
    (Lackawanna County)
    Posts
    639
    Rep Power
    808516

    Default Re: AR Building, Accurizing, Tips & Tricks

    My noveske barrel came with the pin to pin it and a set screw to keep it in place during the process. Does that mean that i should remove the set screw because it's pinned? What I'm getting from this is it's either one or the other.

  7. #27
    Join Date
    Feb 2012
    Location
    Kempton, Pennsylvania
    (Berks County)
    Age
    44
    Posts
    742
    Rep Power
    6514741

    Default Re: AR Building, Accurizing, Tips & Tricks


  8. #28
    Join Date
    Apr 2008
    Location
    Beaver, Pennsylvania
    (Beaver County)
    Posts
    1,692
    Rep Power
    4782630

    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by RXM View Post
    Any serious working gun should have the gas block pinned to the barrel.
    The US Military's MK12 isn't pinned, is it?

  9. #29
    Join Date
    Oct 2008
    Location
    Hueco Mundo, Pennsylvania
    (Montgomery County)
    Posts
    2,064
    Rep Power
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    Default Re: AR Building, Accurizing, Tips & Tricks

    Quote Originally Posted by ViperHummel View Post
    The US Military's MK12 isn't pinned, is it?
    No it's not. My comment was made in jest. I've never had a set screw backed out from shooting it. Pinning a gas block is just an extra measure to ensure that the gas block will not work itself loose. Only one of my guns has a pinned gas block and that's on my SPR.

  10. #30
    Join Date
    Mar 2007
    Location
    Kepler-22b
    Posts
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    2946385

    Default Re: AR Building, Accurizing, Tips & Tricks

    If you have a rail that covers the gas block, it doesn't matter. If you smash the rail to the point to where it rotates the gas block, you have bigger issues to worry about.
    Quote Originally Posted by dkf View Post
    Official Gun Bully and corn flakes pisser inner since March 2007.

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