The M396 Designated Marksman Rifle is one of the most powerful infantry firearms utilised by the UNSC. Replacing the M395 DMR, the M396 is it's direct successor, sharing many components and design features. The rifle is heavier than most other infantry firearms, though using light composite metals and polymers reduced this weight. The rifle uses the massive 10.2x51mm round, which can cause horrendous damage on impact.