Ah, yes.
A Light Anti-Tank Weapon (LAW) that can actually be reloaded.
One of my favorite fictitious weapons in film.
Thanks to its fictitious nature, it can be safely fired from inside a room without any backblast and it arms in only 6 feet - and the detonation only blows the far wall out, not ever mussing the two guys inside’s hair and sets the target individual on fire.
Frick’n miraculous.
I used to carry 2-3 of the real ones for a living.