M224 Mortar.

United States Marine Corps Weapons & EquipmentM224 60mm Lightweight Mortar
Length: 40 inches (101.6 centimeters)Weight: 46.5 pounds (21.11 kilograms)Bore diameter: 60mmMaximum effective range: 2.17 miles (3490 meters)Rates of fire:Maximum: 30 rounds/minuteSustained: 20 rounds/minuteUnit Replacement Cost: $10,658
Mission: To provide the company commander with an indirect-fire weapon.
Features: The M224 60mm Lightweight Mortar is a smooth bore, muzzle loading, high-angle-of-fire weapon. The cannon assembly is composed of the barrel, combination base cap, and firing mechanism. The mount consists of a bipod and a base plate which is provided with screw type elevating and traversing mechanisms to elevate/traverse the mortar. The M64 sight unit is attached to the bipod mount via a standard dovetail. An additional short range sight is attached to the base of the cannon tube for firing the mortar on the move and during assaults. It has a spring-type shock absorber to absorb the shock of recoil in firing.
Background: The M224 replaced the older (WWII era) M2 and M19, 60mm Mortars. These weapons only possessed 2,200 yards of effective range. The M224 was designed to fire all types of the older ammunition, but its primary rounds are of the newer, longer-range type.

A quick primer on this system.

Consider it the Commander's pocket artillery, if the prohibition against the use of the M224 drags on it will degrade combat effectiveness.

What I don't know is if the safety stand down for the system extends to combat zones or if its just for training.