Один с сошками, четверо с носилками 3.

[bukvoed]

Ещё один "горизонтальный миномёт", на этот раз - финны в 1940-е:

Low trajectory mortar designed by Major Kahva for Finnish Army in year 1942 was designed for shooting vision slots of enemy bunkers and machine gun nests with 47-mm mortar shells. This shoulder fired weapon equipped with a folding adjustable bipod and used normal Mosin-Nagant rifle receiver and bolt for firing 47-mm mortar shells originally introduced for 47-mm Tampella mortar prototypes in 1930's. Hence availability of the ammunition was not too great and while the weapon was equipped with bipod it was quite heavy and must have had considerable recoil. This weapon has simple iron sights on left side of the weapon with the rear sight loaned from M/28-30 or M/39 rifle. Sako Oy manufactured three prototypes, which were field tested, but the weapon was never approved and did not see later production.
http://www.jaegerplatoon.net/ALMOST3.htm