The Mobile Gun System (MGS) supports dismounted infantry and engages the enemy in close combat in order to clear opposition and permit rapid movement allowing the force to maintain the initiative, defeat strong points, and occupy and/or secure key objectives.

GM GDLS delivered the first of eight pre-production Stryker™ Mobile Gun Systems to the US Army in July 2002.

General: The Stryker Mobile Gun System variant consists of the basic vehicle with a General Dynamics Land Systems fully stabilized shoot-on-the-move Low Profile Turret. The turret is armed with a M68A1E4 105mm cannon with muzzle brake, a coaxial M240C 7.62mm machine gun and a M2 .50 calibre commander's machine gun. The Stryker Mobile Gun System can fire 18 rounds of 105mm main gun ammunition, 400 rounds of 0.50 calibre ammunition and 3,400 rounds of 7.62mm ammunition. Two M6 smoke grenade launchers are also fitted.

Operational Capability: The Mobile Gun System has the same C4ISR communications and driver's vison equipment as the ICV, but the gunner has three periscopes and a compact modular sight with dual field of view day and thermal channels. The MGS also has detectors for nuclear, biological and chemical weapons.

An advantage to the Stryker Brigade Combat Teams in having the mobile gun vehicle of the same Stryker family of vehicles is the commonality across the entire capability and the reduced logistics requirement.