The M79 grenade launcher, also referred to as the blooper, is a single-shot, shoulder-fired, break open grenade launcher which fires a 40x46mm grenade. It first appeared during the Vietnam War. The M79 can fire a wide variety of 40 mm rounds, including explosive, anti-personnel, smoke, buckshot, flechette, and illumination. This is the favored weapon of the T-800 sent back in time to protect young John Connor.


  • Length: 7310 mm / 28.78 "
  • Weight: 2.7 kg / 5.95 lb (empty) / 2.93 kg / 6.45 lb (loaded)
  • Barrel length: 35.7 cm / 14 "
  • Cartridge: single 49x46 mm grenade
  • Action: break-action
  • Muzzle velocity: 76 m/s / 247 ft/s
  • Effective range: 350 m / 1149 ft
  • Feed system: breech-loaded


Television series


Miles Dyson: The personal entry codes to the lab may still work. (input is rejected by an loud BEEP) It's no good.
Terminator: (loads grenade launcher) Let me try mine.
Terminator: (finds grenade launcher, then opens and closes it) Excellent.