[StainlessSteelCynic]

Originally Posted by Schone23666

Well, I can't say I'm surprised. It seems we're all related as our Limey cousins in the U.K. had a similiar idea as well.

Ladies and gentlemen, I present for your perusal, the ISTEC 40x46mm grenade launcher...mounted on an H&K MP5 submachine gun.

Those people paid far too much attention to the Arnie movie "End Of Days". Internet Movie Firearms Database entry here
...and besides, with that pic from Vietnam, it's pretty obvious that we Australians were far crazier far earlier than these British "Johnny Come Lately" fellas