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Thread: Mid-length carbine uppers

  1. #1
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    Mid-length carbine uppers

    Gentlemen,

    I have purchased two BCM mid-length uppers, forgive the stupid question, But do you utilize a carbine or full length rifle lower??

  2. #2
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    Doesn't matter. All lowers should be the same (slight variations between manufacturers). They're interchangable. No "carbine" or "rifle" length.

    There ARE differences in stocks/buffer systems, but that's based on personal preference and local law.

  3. #3
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    You can use either. Rifle extensions, springs, and buffer are designed for use with fixed stocks, such as the A1, A2, or Magpul MOE rifle stock. Carbine receiver extensions (hopefully in mil-spec size and construction,) springs, and buffers of various weights are used with collapsible stocks.
    Colt SP6920, LE6920, 6720
    BCM Lower/ARP 6.8SPC upper for hog hunting
    DD M4V5 clone, Troy 5.56 Carbine, S&W M&P10
    PSA Lower/BCM LW 16" middie CHF upper
    PSA Lower/BCM LW 14.5" middie upper
    2 PSA 18"6.8 rifles, PSA 20" M16A4 clone
    Remington 870, Remington 700VTR
    SA XDm9, XDm9C, , XD9SC S&W 1911
    Ruger GP100, Hawkeye77 Compact 6.8SPC
    Kel-Tec KSG, Marlin 336 30-30, HK 45C, VP9
    Sig 1911 Tacops, Scorpion 1911, M11A1, P226 Mk25

  4. #4
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    mid-length uppers

    Gentlemen,

    Thank you for the information, I was mainly concerned with the buffer tube length, spring and what weight buffer.... what is the best to assure reliability?

  5. #5
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    Quote Originally Posted by 1st MAW View Post
    Gentlemen,
    Thank you for the information, I was mainly concerned with the buffer tube length, spring and what weight buffer.... what is the best to assure reliability?
    Go here: Buffer tube length, spring and what weight buffer

    Bill Tidler Jr.
    **************

    ...We have long maintained that the only accessories that a 1911 needs are a trigger you can manage, sights that you can see, and a dehorning job. That still goes.
    ~Jeff Cooper

  6. #6
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    If you can find one, I'd give the Vltor A5 buffer system a shot.
    May God have mercy upon my enemies, because I won't.

  7. #7
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    mid-length uppers

    Gentlemen,

    Thank you for your assistance. I am just beginning to get heavy into ARs as my focus for years has been AKs. I have a rather large collection of AK's, Russian and Bulgarian extraction mainly and the majority being 5.45 calibre.
    My experience with the AR(M-16a1) was mainly my tour in RVN, 1969-1970.

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