MEI Mercury

The MEI Mercury is a family of medium-range low-impulse 40mm grenade developed by Martin Electronics, Inc. (MEI) that can reach out to 800 meters. The rounds are a fixed type ammunition designed to be fired from a 40 mm Grenade Launcher such as the M79, M203, M320 (attached to the M16 rifle or M4 carbine), or Milkor MK-1.

Technical information[]

High explosive dual purpose[]

• Body material: Steel
• Fuse: SF801/M550
• Charge: 86g A5
• Weapons: M79, M203, Milkor MK-1 launchers
• Penetration: 90 mm mild steel at normal impact with anti-personnel fragmentation
• Range: (max.) 800 m
• Muzzle velocity: 110 m/s

Covert infrared marker[]

• IR footprint: 28'L × 5'W
• IR viability: 15+ nm
• Range: (max.) 650 m

See also[]

• MEI HELLHOUND
• M32 Grenade Launcher (Milkor MGL)
• M79 grenade launcher
• China Lake NATIC (EX-41)
• M203 grenade launcher
• M320 grenade launcher
• MK19

External links[]

• Martin Electronics, Inc. Home Page
• Future Weapons: MEI Mercury 40MM Grenade
• MEI Mercury 40 mm MV HEDP and MVT grenades (United States), 40 x 46-51 MV Grenades
• Coming out of their shell
• 40 mm Mercury Covert Infrared Marker
• MEI product guide pdf