Future Heavy Weapons for U.S. Army Infantry?

"80mm mortar" is a slip of the tongue; they want an 81mm mortar.

Also, in Army terminology, "Shoulder Launched Munition" specifically refers to disposable shoulder-fired launchers like AT4, M141 BDM and M72 LAW. These platforms are technically considered rounds of ammunition and don't include reusable weapon systems like the M3 MAAWS (Carl Gustaf recoilless rifle). AT4 is more or less a disposable version of the Carl Gustaf munition while the BDM is more or less a disposable version of the Mk 153 SMAW which the Marines are replacing with the MAAWS.