AR-15 help-BCG

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  • mvician

    Master
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    9   0   0
    May 19, 2008
    2,773
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    NW Indiana
    Factory Bushmaster.

    if meaning "factory" it has the semi auto carrier and standard carbine buffer?


    as I said, setup properly, (meaning a full auto carrier and a heavier buffer, maybe even a stronger recoil spring) you won't really be able to tell a difference.
    Most AR manufacturers use too large of a gas port so their rifle will run on cheap low powered ammo. Even then it's too much gas.

    I was disappointed when I built a midlength and first shot it. I was expecting something "softer shooting" than my tuned carbine gas systems. :):
     

    gregkl

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    33   0   0
    Apr 8, 2012
    11,961
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    Bloomington
    if meaning "factory" it has the semi auto carrier and standard carbine buffer?


    as I said, setup properly, (meaning a full auto carrier and a heavier buffer, maybe even a stronger recoil spring) you won't really be able to tell a difference.
    Most AR manufacturers use too large of a gas port so their rifle will run on cheap low powered ammo. Even then it's too much gas.

    I was disappointed when I built a midlength and first shot it. I was expecting something "softer shooting" than my tuned carbine gas systems. :):

    Since I have not even shot an AR yet, I shouldn't be disappointed with my mid-length, right?:)
     

    U.S. Patriot

    Grandmaster
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    7   1   0
    Jan 30, 2009
    9,815
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    Columbus
    if meaning "factory" it has the semi auto carrier and standard carbine buffer?


    as I said, setup properly, (meaning a full auto carrier and a heavier buffer, maybe even a stronger recoil spring) you won't really be able to tell a difference.
    Most AR manufacturers use too large of a gas port so their rifle will run on cheap low powered ammo. Even then it's too much gas.

    I was disappointed when I built a midlength and first shot it. I was expecting something "softer shooting" than my tuned carbine gas systems. :):

    Full auto carrier standard buffer and spring.
     

    gregkl

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    Bloomington
    I got the PSA buffer with my STR stock "kit". How do I know if it's a standard or heavy buffer? I didn't see any markings on it.
     

    mvician

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    9   0   0
    May 19, 2008
    2,773
    38
    NW Indiana
    I want to be able to shoot wolf steel case in my ar. What would I need for it to do it reliably

    Buy a couple of boxes first.
    Make sure your chamber is clean to start with.
    You may want to check your extractor spring and possibly upgrade it.
    Shoot the wolf, see if it will run in your AR reliably.
    Buy more if it does.


    upgrade kit for extractor

    BCM SOPMOD Bolt Upgrade/Rebuild Kit
     

    mvician

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    9   0   0
    May 19, 2008
    2,773
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    NW Indiana
    Most buffers will be marked H1,2 or 3 etc.. If no markings they are usually H1.

    If NO markings the buffer is standard carbine weight.


    these are the standard type buffers

    4ujpbva.jpg
     

    mvician

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    May 19, 2008
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    NW Indiana
    Also by looking at that picture you can see that the "rifle" buffer weighs 5.1 ounces overall.

    Back in the AWB days, carbine gas system rifles either came with an A2 stock or a pinned faux M4 stock. Inside the faux M4 setup was a rifle buffer (5.1 oz.) Also present during the AWB were semi auto bolt carriers. These are around .4 ounces lighter than the full auto style.

    So now you remove that rifle buffer/spring combo and drop in a slightly stiffer carbine spring and a buffer that is 2.1 ounces lighter, and you are back to an over gassed carbine system. That's the reason why a heavier buffer and a full auto style carrier will show benefits in a carbine length gas system.

    If you have a semi auto carrier, run a H2
    If you have a full auto carrier, run the H

    These are starting points, and what runs best in your carbine gas system will depend on factors such as.....

    gas port size
    ammunition being used

    You want to run the heaviest buffer that will still allow your rifle to reliably cycle the weakest ammo you may use.
     
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