Railgun

Not to be confused with the Prototype Railgun.

 is a gun that fires a fast-moving piercing bullet that bounces 8 times.

Trivia

 * Its appearance is near identical to the man-portable rail gun from the Metal Gear Solid franchise.
 * The synergy with Fortune's Favor is a reference to the character Fortune from Metal Gear Solid 2, who wields the weapon.
 * Ironically, Fortune doesn't wield the final production model seen in Metal Gear Solid 4; she wields the prototype.
 * The synergy is a reference to Fortune's squad, the Dead Cell Unit.
 * The flavor text is a reference to the character Garrus Vakarian of the Mass Effect franchise. A running joke (both in universe and in real life among fans of the series) is that Garrus really likes to calibrate guns.
 * The Railgun does not need to be charged until the guiding lines fully converge. In fact, the weapon will fire around halfway through its full charging animation, because it is "charged" as soon as the small cloud of smoke emerges around the player.