The contents of the different DLC are as follows:
Mass Effect 3 - M55 Argus Rifle - The Argus is a high-powered rifle favored by senior C-Sec officers. An excellent close-range weapon, its bursts of fire ensure ammunition conservation during lengthy conflicts. Other law-enforcement agencies across the galaxy are adopting the Argus as their standard rifle, as much for its intimidation factor as its suppression power.
