The Imperial Gaurd was equipped with 80mm mortars.
One mortar crew consisting of a mortar and a crew of three, as shown.
The mortar has a bar on the bottom that connects the two legs of the bipod. This was added for casting and can be removed--but it also can be left on to help embed the legs in the groundwork of your basing.

NOTE: All figures are sold plain (not primed or painted) and without additional basing.