Hegemony Carbine

 is a gun that shoots bright, white lasers.

Trivia

 * The tagline "All The Same" is possibly a reference to the Rifleman's Creed.
 * This gun is used in The Marine's past.
 * It's possible to bring the Galactic Medal of Valor over to his past, which will allow you to acquire the synergy. This is the only synergy you can receive in a past, and it makes the fight among the easiest of any past kill.