From Marvel Comics The Punisher Armory No 2
Mpi8as:
“So I ‘walked away’ with these nice guns. Steyr makes a nice gun, but these MPi8as are affordable, too. A no- nonsense sub-gun, ve ry compact, shoots 9mm Paraabellum rounds at about 550 rounds per minute, has a 25 round magazine and weighs less than the Sunday Times (well it seems to, actually 7½ pounds). ”
Published by Marvel Comics in The Punisher Armory No. 2, June, 1991