Mosin–Nagant is a one of famous russian rifle, which was commonly in use during WW2.
Notes
It should be noted that when reloading the weapon with a round still in the chamber, said round will be ejected onto the ground and can be recovered by being picked up. The rifle can contain a max of 5+1 rounds, but can only be loaded in the field up to 4+1. It is still possible to achieve 5+1 rounds while in-raid, but it requires you to unequip the rifle, remove the magazine, and load the extra round into the magazine via the inventory.