M870 Rampart point defense gun

The M870 Rampart point defense gun is a weapon system utilized by warships of human make, most commonly those of the UNSC Navy. They function as part of a ship-wide defensive network. Each M870 Rampart turret is fully automated due to the inability of humans to calculate firing solutions fast enough for the role of the weapon, and consists of of twin- or quad-mounted 50mm rapid-fire coilguns and a targeting scanner. Point defense guns such as these are used for the engagement of incoming threats, including the warding off of strikecraft and the disruption of Plasma torpedoes; each emplacement actively switches between sub-caliber armor-piercing sabots or proximity detonation fragmentation shells based on a threat-analysis of its current target in order to maximise effectiveness.

M870s are most commonly mounted on lighter frigate and corvette type UNSC and CMA vessels, including s,, Gladius-class heavy corvettes, s, s, and s. But they can also be found mounted on select heavier vessels, such as the Halberd-class destroyers, and even the Epoch-class heavy carriers, making them a relatively common fixture across the entirety of the UNSC fleet.

List of appearances

 * Halo 2
 * Halo 3
 * Halo 3: ODST
 * Halo Legends
 * Origins
 * Halo 4: Forward Unto Dawn
 * Halo 4
 * Spartan Ops
 * Halo 2 Anniversary