Diehl DM-41 HE-Frag Shell was the standard shell for use with the Heckler & Koch HK 69 Grenade Pistol and HK 79 Underbarrel Grenade Launcher. It was designed to contain most of its lethal fragmentation within a 5-meter area of effect, a measure meant to reduce "friendly fire" casualties during rapid assaults or close-in perimeter defense.
- Cartridge: 40 × 46 mm.
- Fuse(s): Point-detonating nose fuse, 4-second delay fuse, and 8-second self-destruct fuse.
- Weight (Projectile): 0.176 kg.
- Filler: 0.03 kg of Hexal 70/30 explosive.
- Payload: 700 2.25 mm steel balls impregnated in the shell casing.
- Weight (Shell): 0.232 kg.
- Area of Effect,
- Lethal Fragmentation: 5 m.
- Maximum Fragmentation: 12 m.
