The Avtomat Kalasknikova (AK47) was a firearm developed by our comrade Mikhail Kalashnikov during his time on sick leave after being injured in a tank battle in WW2. The AK47 fires 7.62x39 and has a 30 round magazine capacity. The rifle was finished in 1947 and directly replaced the SKS carbine firing the same cartridge. The rifle is extremely durable and can withstand nearly every situation. The trigger guard and charging handle are large to allow gloved fingers to operate the rifle. It is extremely simple to clean and operate. The later model, the AKM, was created to modernize the rifle, with changes made to how it was manufactured to make it cheaper. The AK74 was created to accomodate the 5.45 cartridge

The Mosin Nagant is a bolt action rifle created by Leone Nagant and Sergei Mosin. It fires a 7.62x54r (Rimmed) Cartridge. It is extremely loud and kicks like a mule on steroids. It was used primarily in WW2 as the main rifle. the PU sniper was a variant created for snipers. Other variants include the M44 and M38 carbine model. Pictured is a 1891 Dragoon Nagant rifle

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The SVT-40 uses the same bullets that the Mosina uses and as a result the entire gun wobbles like a wet noodle. Can be reloaded with a stripper clip or a standard magazine.

There is also an automatic variant that is super rare and actually not used in its automatic mode (there was also single fire, essentially turning the thing into an SVT) unless in an absolute emergency.

Maybe, I don't really know.