M67 grenade

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M67
M67b.jpg
The M67 fragmentation grenade.
Type Hand grenade
Place of origin  United States of America
Service history
In service 1968 - present
Used by United States, Canada.
Wars Vietnam War, Persian Gulf War, War in Afghanistan, Iraq War
Production history
Designed Late 1950s
Produced 1968 - present
Specifications
Weight 0.875 lbf (3.89 N)
Length 3.53 in (90 mm)
Diameter 2.5 in (64 mm)

Filling Composition B
Filling weight 0.40625 lbf (1.8071 N)
Detonation
mechanism
Pyrotechnic delay M213 fuse—4 seconds
M69
Reservehigh20048611453.jpg
M69 training grenades
Type Hand grenade
Place of origin  United States of America
Service history
In service Current
Used by United States
Specifications
Weight 14 oz (400 g)
Length 3.53 in (90 mm)
Diameter 2.5 in (64 mm)

Filling None
Detonation
mechanism
Pyrotechnic delay fuse – 4 seconds

The M67 grenade is a fragmentation hand grenade used by the United States military. The M67 is a replacement for the M26-series grenades used during the Korean and Vietnam Wars, and the older Mk 2 "pineapple" grenade used since World War II. The M67 hand grenade has an effective casualty radius of about 5 meters or 16 feet.

Overview[edit]

The M67 grenade has a spherical steel body that contains 6.5 ounces of composition B explosive. The M213 fuse is specifically designed for use with the M67 fragmentation grenade. The M67 grenade weighs 14 ounces in total and has a safety clip to prevent the pin on the grenade from being pulled accidentally. The pin prevents the lever, or "spoon" on the grenade from flipping off and arming the fuse on the grenade.

The M67 can be thrown 30 to 35 meters by the average male soldier. Its fuse delays detonation between 4 and 5 seconds after the spoon is released. Steel fragments (not to be confused with shrapnel) are provided by the grenade body and produce an injury radius of 15 meters (~45 ft), with a fatality radius of 5 meters (~15 ft), though some fragments can disperse as far out as 250 meters (~820 ft).[1]

Use[edit]

To utilize an M67 grenade, the user must first adopt the "throwing position": feet spread apart, with the grenade held squarely in the user's abdomen area.

Second, the user removes the safety clip from the grenade.

Third, the user places their non-dominant index finger in the pin of the grenade while maintaining a firm grasp on the body of the grenade and safety lever (also referred to as a spoon) with the dominant hand, so in case the user accidentally pulls the pin, the spoon doesn't automatically fly off and ignite the fuse. As an added safety measure, the pin of a live grenade is bent to prevent an accidental removal. When the pin is pulled, the user must pull hard enough to straighten the pin as it comes out. The pin is small and made of a relatively soft metal, making it relatively easy to remove. Left handed people hold the grenade upside down in their left hand.

Fourth, the user firmly pulls the grenade away from the pin, ensures that the spoon is still intact, and heaves the grenade at the intended target. The user may also let go of the safety, before throwing, and cook the grenade for a few seconds in order to ensure the enemy does not have time to throw it back before detonation. However, "cooking" a grenade is not recommended in all but the most dire defensive situations, as variances in the length of the delay fuse could cause the grenade to explode too near to the user. The thrower always yells "frag out" to warn others of the outgoing grenade, as simply yelling "grenade" is a warning of an incoming grenade thrown by the enemy. When the grenade is thrown, tossed or dropped, the safety spoon, which is under spring tension but was held in place first by the pin, then by the palm of the user's hand, flies off. This action frees a spring-loaded firing pin which snaps over onto a percussion cap, igniting the time delay fuse which burns for 4 seconds, followed by detonation. The user takes cover from the blast.

Variants[edit]

U.S. Marines in January 2008 practice with the M67 grenade, at Camp Lemonier, Djibouti. Note the mid-air separation of the safety spoon from the rest of the grenade.
After the grenade is thrown, the thrower takes cover from the detonation.

M33 Fragmentation Grenade[edit]

This is the M67 without the safety clip. It has the same statistics as the M67.

M68 Fragmentation Grenade[edit]

This is a variant of the M67 with a backup impact fuse that detonates 3 - 7 seconds after impact. It has the same statistics and markings as the M67 except it has a red-painted fuse and lever to indicate it has an impact fuse.

M69 Practice Grenade[edit]

The M69 grenade is used for grenade training to safely simulate the M67 grenade. The fuse screws into the body, and is replaceable after use. The simulator produces a report and small puff of white smoke when properly employed.

The M69 has a blue-painted lever and a blue body. This is to indicate that it is a safe practice grenade rather than a live fragmentation grenade like the M33 or M67.

Users[edit]

External links[edit]

Notes[edit]

See also[edit]