The PPSH 41 is an SMG with a high rate of fire, available only from the mystery box. It has a capacity of 71 bullets, with 355 in reserve. The Pack-a-Punched version (PaP) is The Reaper, featuring a capacity of 115 with 700 in reserve.
The PPSH 41, as seen wielded by a player
The Reaper, as seen wielded by a player