Remington 870 military designation

Discussion in 'Shotguns' started by Slater, Jun 3, 2004.

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  1. Slater

    Slater Member

    Jun 20, 2003
    Flagstaff AZ
    I've often heard the term "M870" applied to 870's in military service. Is this an official designation or just an informal name?

    Same for "M590" for the Mossberg 590.
  2. dfariswheel

    dfariswheel Member

    Dec 26, 2002
    The US Army, Air Force, and Marine Corp all use various versions of the Remington 870 known as the 870 Mark One, through 870 Mark Six versions.

    All these had slight differences in barrel length, bayonet mount, and magazine extensions.

    The Mark One had a 21" barrel, parkerized finish, rifle sights, and a special barrel band/barrel shroud with bayonet attachment. This is the gun commonly seen in Marine and Navy hands.

    For a look at some of these Mark One's, see this link:

    The Mark Two was identical to the One, but had a bead sight.

    The Mark Three was identical to the Mark One only without the barrel shroud. It used a metal bracket attached to the barrel as a bayonet mount.

    The Mark Four was identical to the Mark Three only with a bead sight instead of rifle.

    The Mark Five had rifle sights, but no magazine extension or bayonet mount.

    The Mark Six was like the Five only with a bead sight.

    The Mark Five and Mark Six are essentually nothing more than the standard Remington 870P Police guns.

    I think the Mossberg is officially known as the M590, but I'm not SURE about this.
  3. WJR

    WJR Member

    May 21, 2003
    AL, USA

    That is some great info. Thank you for sharing.

    Those pics are great on the other board.

  4. Badger Arms

    Badger Arms Member

    Jan 1, 2003
    Harnett County, NC
    The Air Force calls it the M870. I know that for a fact, I'm qualified on it. Says so right on my card.
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