M1129 mortar carrier
Within the U.S. Army Stryker vehicle family, the M1129 mortar carrier provides indirect fire in direct support of infantry at the company and battalion levels. Two are assigned to each company and four to each battalion. There are two versions, the questionably useful and the MCV-B. It is the MCV-B that can fire the mortar from the vehicle, while the MCV-A only tows it. The M1128 mobile gun system complements it for direct fire in infantry units.
In addition to its primary weapon, an M121 120mm mortar, the vehicle carries an 81mm mortar at the battalion level and a 60mm mortar at the company level, both of which are fired from the dismounted position. With a crew of four, either the 120mm or the lighter mortar can be fired, not both. The MCV-A does have the Remote Weapons Station that can mount either a .50 caliber M2 (machine gun) or a 40mm MK 19 grenade launcher, while the MCV-B has a pintle-mounted 7.62mm M240 (machine gun).