[GZG] [OT[ Re: Grenade Launchers & Gyrojets

Not quite. The weapons (M79, M203, HK79 etc.) are very simple but the
cartridges are not. They are a much cleverer and more sophisticated design
than a shotgun
cartridge using the 'High-Low Pressure System' (copied
from a wartime German original) where the gas is retained in the cartridge
(high pressure) and carefully bleed into the barrel (low pressure).

Irrelevant but interesting. Apparently one of the British ARWEN grenade
launcher prototypes was pump action. The sound it made when being stroked was
even more intimidating than that from a pump action shotgun.

Gyrojet A rocket pistol just sounds good, very Flash Gordon, someone just had
to make one. Larry Niven seems to love the things.