[randomswede]

There's also Strix[1], a self-guiding anti-armor mortar round. Not actually sure when it was taken into use, I recall hearing rumours about it being in development in the late 80s, and the Swedish model designation (m/94) indicates it was accepted in 1994.

But, 120 mm is a lot bigger than anything I'd be comfortable firing from a rifle.

[1] https://en.wikipedia.org/wiki/Strix_mortar_round