Asymmetric Recoilless Carbine-920

The Asymmetric Recoilless Carbine-920, also known as the Railgun, is a compact-channel linear accelerator that fires a high-explosive round at incredible speed, delivering both kinetic and explosive force to both hard and soft targets alike. Right now, not much is known about this weapon. 343 Industries has also revealed that this weapon will have a charge time like the Spartan Laser. The railgun's charge time will be half of the Spartan Laser's charge time. This weapon will kill any player instantly, yet this weapon will not feature a zoom, nor powerful vehicle damage. Instead, it will send most vehicles tumbling sideways similar to what the Halo 3 Brute Shot did. This weapon will be properly classified as an Anti-Infantry weapon.

Trivia

 * The ARC-920 may have been inspired by the M-920 Cain Heavy Weapon from the Mass Effect trilogy. The Cain, according to its description, "Fires a high explosive round that is applied to a 25 gram slug and when accelerated up to velocities of 5 km/s generates a archetypal mushroom cloud on impact."
 * A screen of the ARC-920 has been leaked and can be seen below.