Has anyone seen how many 81mm rounds a well trained and scared to death M-29 mortar team can put out in 3 seconds? Just by the way, if you've got one guy kneeling beneath a single-shot M203 grenade launcher feeding it ammo and you direct it by means of a very extended sling with the parent rifle's butt on the ground, you can get 15-18 40mm rounds in the air before the first one hits, firing at an angle just a bit above 45º. I have been told the record was 19, but I wasn't there to see it.
I haven't tried it with an 81mm mortar, though we went through a jeep trailer full of ammo with a 60mm M19 once.
Roger that!
But as Travis Mcgee pointed out....
The 6-pack is a ONE man pack and shoot weapon.
It can be fired horizonal line of sight through a window, or firing slit that is protected from above...
The 60mm and 81mm mortars can't fill that bill...
That being said..... I would still want my 81's within reach... And yes, you need a chopper or air drop to keep the bastards fed - when they're in use...
Semper Fi