The M67 Fragmentation Grenade is a handheld explosive used by the United States military. The M67 is a further development of the M33 grenade, itself 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 15 meters. It is considered a "defensive fragmentation grenade" because it must be used from the safety of cover, since the range of its fragments is greater than a human can throw the grenade.
Powers and Stats
Tier: 9-B; fragments generally range from 9-C to 9-B
Name: M67 Fragmentation Grenade
Origin: Real World
Classification: Explosive hand grenade
Wielders: United States, Canada, Argentina, Turkey, Malaysia
Powers and Abilities: Explodes violently, turning its steel casing into deadly high-speed fragments
Attack Potency: Wall level in explosive energy (Contains ~180 grams of Composition B, equivalent to an explosive energy of just over a megajoule); fragments generally range from Street level to Wall level (The fragments can easily penetrate concrete walls, furniture, cars, human bodies, etc. at close range)
Speed: Subsonic (30–45 m/s) when thrown by hand, slightly faster (60–75 m/s) if launched as a rifle grenade; Hypersonic+ (7840 m/s, Mach 23) detonation velocity for Composition B charge; likely Hypersonic (3400 m/s, Mach 10) for fragments (according to the Gurney Equation), fragment velocities typically drop to Subsonic around 100–150 meters.
Durability: Probably Street level (has a 2mm thick moderate steel case)
Range: About 30 meters when thrown by hand, at least 100 meters if launched as a rifle grenade; fragments have a 5 meter kill, 15 meter casualty, and 230 meter potential danger radius
Weaknesses: A soldier cannot throw an M67 far enough to be outside of the grenade's potential danger radius, meaning s/he must take cover after throwing one; once the fuse has been activated, it cannot be stopped, making it possible to accidentally blow oneself up unintentionally.