M4

This is a discussion on M4 within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; What is the difference between M4A2 and A3"s thx ..............

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Thread: M4

  1. #1
    Member Array Draco's Avatar
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    M4

    What is the difference between M4A2 and A3"s thx ...........
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  3. #2
    Senior Member Array Packman73's Avatar
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    Subscribing.

    I'd also like to ask what the difference between an M4 and an AR15. Is an M4 an AR15 with burst/auto fire selections?

  4. #3
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    M4 is the select fire variat made by Colt. I think the designation A2 is a carry handle upper, A3 the flattop upper. Lots of companies use these designations to identify the configuration of there AR15's. (AR-15's being semi auto. )
    Also the M4 and variants have a heavy, tapered barrel, for the military to attach a grenade launcher.
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  5. #4
    Senior Member Array Packman73's Avatar
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    Thanks Rocky, I thought so. My BIL is a Maricopa County Deputy Sheriff and he calls his semi-auto AR15 an M4. I told him that it was an M4gery and he got a bit defensive...

  6. #5
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    an M4 needs the 14.5" stepped bbl too.

  7. #6
    Senior Member Array Packman73's Avatar
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    And a collapsible stock too, right?

  8. #7
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    yep, with the angled butt and finned support around the buffer tube area of the stock.
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