FWW2 mod main goal is to bring three wars that Finland went through during WW2, Winter war at 1939-1940, Continuation war at 1941-1944 and Lapland war at 1944-1945. Mod will have multiple releases which covers all meantioned wars.
M/27 Infantry rifle was first notable (and succesful, even if it had its own problems) finnish modification of Soviet M/1891 Mosin Nagant rifle. Known as Pystykorva (Spitz) due to front sights guard that reminded about dogs pointy ears. M/27 served as main infantry rifle for Finnish army with M/91 Mosin Nagant during Winter war.
You can find whole picture from here:
Fww2.org