Heh, i saw the posts on this page first so I checked back to that page thinking "D'awww, it can't b THAT big. I dunno what everyone is talking about" Then I see it and it took about a minute to register in my mind before literally yelling "HOLY ######" Thats just... wow. Even for training purposes... Heh, mod it to shoot bowling balls neumatically XD jk of course. Unless oyu want to make a REALLY interesting airsoft mortar and put big foams rounds in it =p
Anyways, continue. sorry, just had to give my $.02 on that XD