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  • M67 (Grenade) Fragmentation Hand Grenade

    The M67 hand grenade replaced the M61 hand grenade of the Vietnam War.

     Updated: 11/11/2016; Authored By Staff Writer; Content ¬©www.MilitaryFactory.com

    The M67 is a fragmentation-based hand-grenade utilized to supplement infantry actions in the field. The hand grenade concept is an ancient one, with roots dating back centuries. The principle behind the device is to inflict area damage to entrenched personnel by way of force-thrown high-velocity fragments distributed in a uniform pattern. The M67 is currently in service with US military forces among others and has proven a capable area-effect weapon. The M67 was selected as the replacement infantry hand grenade for the M61 series used in the Vietnam War.

    The M67 is made up of a 2.5-inch diameter spherical steel case that contains some 6.5 ounces of high explosive substance made up of "Composition B" material. The grenade is fitted with a an internal M213 series fuze that ignites the explosive charge within. The explosion disintegrates the grenade casing itself, which in turn becomes the fragmentation component of this hand grenade. There is a four-to-five second window for the operator to throw the grenade at the target area based on the delay detonation cycle built into the device.

    The actual detonation cycle is activated when the spring-loaded safety lever separates from the grenade while in flight. An internal firing pin then hits against a percussion cap and ignites the M213 fuze. This action is preceded by the operator having removed the pin to begin the detonation process in full. Reportedly, the pin can be inserted back into a live grenade so long as the safety portion of the grenade is still in place.

    Range is dependent on the thrower while the lethal damage radius is reported to be approximately 16.4 feet, inflicting potential damage out to about 50 feet while its fragments can be found up to 750 feet away from the center of the blast zone. Such is the value of these little hand-held and thrown battlefield implements.

    In Canadian service, the M67 falls under the designation of "C13".

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    M67 (Grenade) Technical Specifications

    Service Year: 1971
    Type: Fragmentation Hand Grenade
    National Origin: United States
    Manufacturer(s): State Factories - USA

    Design (Internal, Dimensions and Weights)

    Firing Action: Timed Fuse Explosive; Thrown
    Available Caliber(s): Not Applicable
    Ammunition Count / Feed: Single Use
    Weight (Empty): 0.86 lb (0.39 kg)
    Sighting Assist: Not Applicable


    Global Operators / Customers

    Argentina; Canada; Malaysia; Malta; Turkey; United States

    Model Variants

    M67 - Base Fragmentation Grenade

    M33 - Fragmentation variant based; sans safety clip on safety lever.

    M33A1 - Pre-M68 variant; impact fuse; M33 body with M217 fuse.

    M59 - Pre-M68 variant; impact fuse; M33 body with M217 fuse.

    M68 - M217 impact fuse; safety clip

    M69 - Training / practice grenade; blue body coloring

    C13 - Canadian Army Designation of the M67.