M2 Bradley

The U.S. Army’s primary tracked infantry fighting vehicle — a 25 mm Bushmaster cannon, TOW anti-tank missiles, and a six-man dismounted squad all on one platform, most famously the vehicle that enabled a two-man crew to disable a Russian T-90M with sustained chain-gun fire in Ukraine.

Overview

The M2 Bradley, nicknamed “Brad,” is a tracked infantry fighting vehicle designed to carry a rifle squad into combat while providing direct-fire support and anti-armor overwatch. First fielded in 1981, it has evolved through M2A3 and M2A4 blocks, with the latest M2A4E1 adding an Iron Fist active protection system. The vehicle combines a stabilized 25 mm M242 Bushmaster chain gun, a twin-tube TOW missile launcher, and space for three crew plus six dismounted infantry. More than 6,700 Bradleys of all types have been built, serving with the United States, several allied nations, and Ukraine, which received around 190 M2A2 ODS-SA vehicles from 2023.

Development

The Bradley entered service in 1981 after a protracted acquisition program that replaced the M113 armored personnel carrier in the mechanized infantry role. BAE Systems (then United Defense) delivered the first production vehicles, and the type saw its first major upgrade with the digital M2A3 variant fielded in 2000. BAE Systems describes the A3 as integrating a full digital fire-control system and a hull redesigned to accept add-on armor. The M2A4, which began fielding in 2022, brings a stronger suspension and a 675-hp engine to restore mobility to the up-armored hull. Army Technology notes that the A4 was specifically engineered to handle the weight growth of survivability upgrades, while Armada International reported the first unit’s receipt of the A4. The latest variant, M2A4E1, unveiled in 2024, integrates the Iron Fist active protection system to defeat incoming anti-tank threats.

Design & capabilities

The M2 Bradley mounts the M242 Bushmaster 25 mm chain gun, with dual-feed ammunition selection, in a two-man turret. Army Technology details the gun’s capability to engage light armor and infantry out to roughly 2,000 m, while the externally mounted TOW launcher can reach hardened targets at ranges of 3.75–4 km. The hull is fabricated from welded aluminum with spaced laminate and steel appliqué armor; later production vehicles and those sent to Ukraine incorporate explosive reactive armor tiles. BAE Systems highlights that the A4E1’s Iron Fist APS provides a hard-kill layer against rocket-propelled grenades and anti-tank guided missiles, a capability previously absent from the fleet. A Cummins VTA-903T diesel, rated at 600 hp in the A3 and roughly 675 hp in the A4, gives the 27.6–34.2-ton vehicle a power-to-weight ratio of about 21.7 hp/t and a road speed of up to 66 km/h. Wikipedia records an operational range of 400–483 km and notes that the Bradley is fully amphibious with minimal preparation, though later armor packages have reduced practical swim capability.

Variants

• M2 – Baseline infantry fighting vehicle; three crew plus six dismounts.
• M3 – Cavalry fighting vehicle; two scouts in place of the infantry squad, additional ammunition stowage.
• M2A3 – Digitized upgrade (2000); improved armor, fire-control, and situational-awareness systems.
• M2A4 – Mobility and survivability overhaul (2022); stronger suspension, 675-hp engine, and redesigned under-belly protection.
• M2A4E1 – Integration of the Iron Fist active protection system (unveiled 2024); the first Bradley variant with a hard-kill APS.
• M2A2 ODS-SA – Operation Desert Storm situational-awareness configuration, the variant donated to Ukraine and combat-tested at extreme close quarters.

Combat record / operational use

Bradleys first saw large-scale combat during the 1991 Gulf War, where they destroyed more Iraqi armored vehicles than the M1 Abrams main battle tank. They then served through the Iraq War from 2003, providing fire support and convoy escort in urban counterinsurgency operations. In Ukraine, where they have been fielded by the 47th Mechanized Brigade since 2023, the Bradley’s most celebrated engagement occurred near Avdiivka in January 2024: a two-man crew, after being separated from their dismounts, engaged a Russian T-90M at close range with the 25 mm chain gun, disabling the main battle tank’s optics and controls and forcing it to withdraw, a sequence documented by Task & Purpose and analyzed in detail by Kyiv Post. Ukrainian brigades have repeatedly praised the Bradley’s ability to deliver sustained, accurate fire while protecting the dismounts, though the close-in fight has also exposed the vehicle to drone-dropped munitions and artillery.

Advantages

• Battle-tested autocannon/TOW combination that can suppress and destroy both light armor and main battle tanks.
• Genuine infantry-squad capacity (six dismounts) with rear-ramp egress.
• High rate of fire from the 25 mm Bushmaster allows volume fire for suppression or “death by a thousand cuts” against heavier armor.
• Active protection system (Iron Fist on A4E1) adds a hard-kill layer missing from older IFVs.
• Extensive combat record across four decades, continuously upgraded.

Drawbacks / limitations

• Base armor is thin by modern standards; even with add-on ERA the hull remains vulnerable to large-caliber autocannons and top-attack munitions.
• Weight growth has eaten into the original amphibious capability and driven frequent engine/suspension upgrades.
• The aging fleet requires substantial refurbishment; many vehicles in storage are at the end of their structural life.
• Lacks a dedicated commander’s independent thermal viewer on older variants, limiting situational awareness when the gunner is engaged.

Counterparts

• BMP-3 (Russia) — a lighter IFV with a 100 mm gun-launcher and 30 mm autocannon, but far less protected and more vulnerable to catastrophic ammunition detonation.
• ZBD-04A (China) — a BMP-3-influenced tracked IFV with a 100 mm/30 mm coaxial arrangement, yet no combat record and no hard-kill APS.

Outlook

The M2 Bradley remains in serial production as the M2A4, with the M2A4E1 bringing active protection to the fleet. The hard lessons of the Ukrainian battlefield — where the vehicle has proven its value as a direct-fire support platform but also its vulnerability to drones and top-attack munitions — are feeding directly into U.S. Army survivability programs. While the long-term replacement will be the XM30 Mechanized Infantry Combat Vehicle, the Bradley is expected to anchor the mechanized force through at least the 2030s, sustained by a deep industrial base and a growing pool of combat-data from Ukraine.

Key specifications

Sources

1. BAE Systems — Bradley Fighting Vehicle. https://www.baesystems.com/en/product/bradley-fighting-vehicle
2. Army Technology — Bradley M2A3/M3A3 Tracked Armoured Fighting Vehicles. https://www.army-technology.com/projects/bradley-m2-m3/
3. Armada International — U.S. Army fields M2A4 upgraded Bradley IFV. https://www.armadainternational.com/2022/04/us-army-fields-m2a4-upgraded-bradley-ifv/
4. Wikipedia — M2 Bradley. https://en.wikipedia.org/wiki/M2_Bradley
5. Task & Purpose — Ukrainian Bradley with two-man crew disables a Russian T-90M. https://taskandpurpose.com/news/ukraine-bradley-fighting-vehicle-tank-two-man-crew/
6. Kyiv Post — How Ukraine’s M2 Bradleys Take Out Russia’s Best T-90M Tanks. https://www.kyivpost.com/analysis/26992