The Scourge "Nightstalker" Railgun is a size 5 ballistic railgun from Apocalypse Arms with a ammo capacity of 5 rounds.
The in game information lists the ammo capacity incorrectly as 10 rounds, but only 5 rounds are available as well as being able to be modified with size 4 underbarrel attachments that currently not exist.
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Equally devastating to larger threats and hostile vehicles, this shoulder railgun from Apocalypse Arms uses electromagnets to deliver its payload accurately over great distances, making it the Scourge of land, air and space.
The Size 4 underbarrel attachment point is currently unusable.
Apocalypse Arms (APAR)