It is known that the Stryker M1128 MGS was designed with the requirement to create for the US Army a multi-purpose vehicle capable of engaging in combat quickly, flexibly and with strong firepower.

In the United States, the Stryker was conceived as a family of vehicles forming the backbone of a new medium-weight brigade combat team (BCT) that was to strike a balance between heavy armor and infantry. Based on the basic configuration, about 10 variants of this wheeled armored vehicle have been developed to meet the requirements of the armed forces. The M1128 Stryker is a mobile gun system, mounted with a 105 mm tank gun, designed to provide direct fire support to infantry units.

It is known that this vehicle was designed with the requirement to create for the US Army a multi-purpose vehicle capable of engaging in combat quickly, flexibly and with strong firepower. The Stryker M1128 MGS wheeled self-propelled gun is a version of the Stryker armored vehicle equipped with a powerful 105mm gun, equivalent to some main battle tanks. However, unfortunately they were not widely equipped by the US and were soon eliminated.

All Stryker armored vehicle versions use an 8×8 configuration combined with a powerful engine for very good off-road mobility. Armor protects against small arms fire and artillery shell splinters. Interior is lined with Kevlar spall liner. Vehicle can be fitted with add-on composite armor, which provides protection against 14.5 mm rounds, and add-on slat armor which protects against anti-tank rockets and missiles. The vehicle is fitted with NBC protection and automatic fire suppression systems. On the downside was protection against mines and improvised explosive devices. Protection against blasts is rather limited as the Stryker was never designed to withstand mine blasts.

The M1128 Stryker MGS is specifically designed for low-intensity battles and takes on some of the main battle tank roles. Production of the first M1128 Stryker MGS began in 2002 and entered service with the US Army in 2007. However, when deployed, some errors were discovered, so only a limited number of vehicles were deployed. In 2013, each US Army Stryker armored brigade had only 27 fire support vehicles of this type. Over time, the M1128 Stryker MGS was improved to overcome its problems. However, in 2021, the US announced it would begin phasing out this weapon line.

Undeniably, one of the main advantages of this fire support vehicle is mobility. It can fire at long distances. The initial idea when developing this line of weapons was that the US wanted to create a vehicle with strong firepower and high mobility to overwhelm opponents. The M1128’s turret, built by General Dynamics Land Systems, armed with a 105mm M68A1E4 main gun with an automatic loader. It is a modified version of the tank gun, used on the M1 Abrams and M60 series main battle tanks.

It was the first time when a US military vehicle of this class was fitted with automatic ammunition loading system. However it turned out that the original autoloader had jamming problems. In 2005 it was redesigned. Eventually it turned out that the autoloader of the M1128 is expensive to maintain. The gun is fully-stabilized, so the vehicle can fire accurately while on the move.

The Mobile Gun System fires high-explosive, anti-tank and canister rounds. Despite its anti-tank capability the Stryker MGS is intended to support infantry rather than to fight tanks. Its 105 mm gun poses little threat to modern main battle tanks, unless the tank is attacked from the flanks or rear. Only 18 rounds for the main gun are carried by the vehicle. Overall there are a number of problems with this vehicle, that are mainly related to its turret.

The Stryker M1128 MGS has a crew of 3, including commander, gunner and driver. The vehicle is equipped with a Caterpillar 3126 diesel engine, with 350 horsepower, helping the vehicle maneuver at a maximum speed of 96km/h, with a range of more than 500km.

The Stryker M1128 MGS can be transported by C-130 Hercules medium transport aircraft and larger military transport aircraft. In short, despite many advantages, due to difficulties in maintenance, and especially the unclear role, the Stryker M1128 MGS wheeled self-propelled gun gradually fell out of favor in the hands of the US military.

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