Ar9 pistol build help

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    woodymd

    Member
    Apr 10, 2015
    16
    Sorry if this has been asked I did search but couldn’t find anything.
    I’m a newbie to building, I did build a LR-308 last year but not from ground up. Now I want to do a pistol build from an 80% lower. My biggest issue is parts list and what manufacturer. I’m unable to find an ar9 lower without the trigger guard so I will use an ar15 and mag well adapter.
    What about buffer tube barrel and all the other parts.
    Anyone care to share a parts list?

    Also thinking of a 300 blk but have heard of some people with issues with them.

    Thanks in advance.

    Ps the pic is something similar to what I am looking for.
     

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    outrider58

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,043
    IDK. AR9s can be finicky. Why not buy a dedicated lower? They're cash and carry.
     

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    woodymd

    Member
    Apr 10, 2015
    16
    outrider58 said:
    IDK. AR9s can be finicky. Why not buy a dedicated lower? They're cash and carry.
    Click to expand...

    Honestly kind of petty *♂️ But can’t find one without the trigger guard. Was planning on using strike industries trigger guard.

    Other than the lower what else is finicky? I was going to do a 300 blk but heard those were finicky
     
    Spektek

    Spektek

    MDS Supporter
    May 7, 2020
    40
    Baltimore & GB
    outrider58 said:
    IDK. AR9s can be finicky. Why not buy a dedicated lower? They're cash and carry.
    Click to expand...

    ^^^ +1 to The Wise Clown ^^

    Or:
    I know that their is plenty of .300 BLK lovers on here that can help you give advice on the right buffers, best barrel length & gas blocks so you could have a perfect (not-so-finiky) .300 build.

    I'd love to build a .300 supressed AR one day.

    Quick Google search so I have no clue about the manufacturer :

    https://aaomfg.com/80-glock-9mm-lower-lrbho-fg-raw

    https://www.smftactical.com/9mm-80-colt-lower-receiver-slim/

    https://americanresistancegear.com/...glock-9mm-ar-stripped-lower-80-no-ffl-needed/

    https://www.totalwartactical.com/pr...ses-glock-magazines-ar-9-ar-9-anodized-black/
     
    outrider58

    outrider58

    Eats Bacon Raw
    MDS Supporter
    Jul 29, 2014
    50,043
    woodymd said:
    Honestly kind of petty *♂️ But can’t find one without the trigger guard. Was planning on using strike industries trigger guard.

    Other than the lower what else is finicky? I was going to do a 300 blk but heard those were finicky
    Click to expand...
    PCCs can be a bit harder to tune than 300lks. With 300s, most of the trouble is managing gas flow. Generally, a soft buffer spring and H2 buffer is a good place to start. Add an adjustable gas block, and you can dial the gas flow where you want it.

    With blow-back PCCs, You're basically stuck with controlling the cycling through resistance i.e. the buffer and spring. Adding LRBHO adds another dynamic, then add the ejector. Plus, you have a variety of PCC BCGs that have their own idiosyncrasies. Now you want to mill out your own 80% lower.


    I might be making more of this than might be necessary, but in my mind, the fewer links in a chain, the fewer the chances of failure in that chain.
     
    W

    woodymd

    Member
    Apr 10, 2015
    16
    outrider58 said:
    PCCs can be a bit harder to tune than 300lks. With 300s, most of the trouble is managing gas flow. Generally, a soft buffer spring and H2 buffer is a good place to start. Add an adjustable gas block, and you can dial the gas flow where you want it.

    With blow-back PCCs, You're basically stuck with controlling the cycling through resistance i.e. the buffer and spring. Adding LRBHO adds another dynamic, then add the ejector. Plus, you have a variety of PCC BCGs that have their own idiosyncrasies. Now you want to mill out your own 80% lower.


    I might be making more of this than might be necessary, but in my mind, the fewer links in a chain, the fewer the chances of failure in that chain.
    Click to expand...

    ok so you convinced me for at least now :lol2: I'm going to go the 300 blk for the first one then do the 9. now I just need to find a jig :confused:
     
    teratos

    teratos

    My hair is amazing
    MDS Supporter
    Patriot Picket
    Jan 22, 2009
    59,838
    Bel Air
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