Largest Upper on Stock lower AR-15

Largest Upper on Stock lower AR-15

This is a discussion on Largest Upper on Stock lower AR-15 within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; What is the largest upper (caliber) that I can add to my standard lower? I'm wondering what size I can get if I wanted to ...

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Thread: Largest Upper on Stock lower AR-15

  1. #1
    Senior Member Array cuban11182's Avatar
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    Largest Upper on Stock lower AR-15

    What is the largest upper (caliber) that I can add to my standard lower? I'm wondering what size I can get if I wanted to hunt with it? Also, would I need a new magazine for the newer caliber?


  2. #2
    JD
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    .50BMG, single shot of course...


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    Senior Member Array cuban11182's Avatar
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    JESUS!!! I was looking more like 6.5 or 6.8

    I don't think there would be any meat left on ________(fill in blank)
    a. deer
    b. hog
    c. moose
    d. elephant
    e. all of the above

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    VIP Member Array Cuda66's Avatar
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    You did ask for the biggest, now, didn't you?

    However, to answer your question in the spirit it seems to have been asked: .50 Beowulf.

    If that is still too big, then .450 Bushmaster.

    Smaller yet? Probably look at the new .30 AR or 7.62x39.

    And all will need their own magazines.
    There are no dangerous weapons; there are only dangerous men.--RAH

    ...man fights with his mind; the weapons are incidental.--Jeff Cooper


    There is a reason they try and make small bullets act like big bullets--Glockmann10mm

  5. #5
    JD
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    The 6.5 Grendel could be a promising hunting round, although it's somewhat of a novelty.

  6. #6
    VIP Member Array dukalmighty's Avatar
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    I can't afford 50 BMG rounds
    "Outside of the killings, Washington has one of the lowest crime rates in the country,"
    --Mayor Marion Barry, Washington , DC .

  7. #7
    Distinguished Member Array mathewsman's Avatar
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    hey now i know somebody that hunts mule deer with a 50 he says they dont go far
    NRA sence 2003 Colt defender Taurus .357 mag
    Taurus tcp x box gamer tag mathewsman

  8. #8
    Senior Member Array Exodus's Avatar
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    Count me in for .50 Beowolf. JD's is nice, but it's not much of an AR anymore.

    This site has some good info on it, and a clip from future weapons:
    http://www.50beowulf.com/

    Here's where you can buy 'em:
    Umlaut Industries LLC : .50 Beowulf® Plus - Upper Assembly
    "To my mind it is wholly irresponsible to go into the world incapable of preventing violence, injury, crime, and death. How feeble is the mindset to accept defenselessness. How unnatural. How cheap. How cowardly. How pathetic." Ted Nugent

    SIC VIS PACEM PARA BELLUM.

  9. #9
    New Member Array pico's Avatar
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    .50 Beowulf needs to become a more common and easy to find round before I would invest in the AA upper. The Ultramag 50 from Safety harbor can be equipped with a 5 round mag and is a great bolt action upper using the .50 BMG. Any larger, and it would probably be illegal... and a 20mm ;)

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