Stock Price: 132.00 -0.15 12/13/2017 12:47 PM ET

Stock Price: 132.00 -0.15 12/13/2017 12:47 PM ET

120mm Ammunition

120mm M829A1 APFSDS-T Ammunition

Orbital ATK's M829A1 APFSDS-T, an armor-piercing, fin-stabilized, discarding sabot with tracer, is one of the eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world. All rounds are fully compatible with 120mm smoothbore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smoothbore cannons. The 120mm training ammunition designs provide low-cost, live-fire training to the tank crew.

The M829A1 kinetic-energy round was designed as a replacement for the M829 KE round. The M829A1 utilizes a redesigned projectile and improved propulsion system to increase on-target performance. This round was combat proven in Operation Desert Storm, where it became known as "The Silver Bullet."

"The ammunition is ... like a laser beam," one tank commander said during the gulf war.

Physical Data
Cartridge height984mm
Cartridge weight20.9 kg
Propellant typeJA2 19 Perf
Propellant weight7.9 kg
Projectile typeArmor-piercing
Projectile weight9 kg
Projectile length780 mm
Penetrator length780 mm
Penetrator diameter22 mm
Penetrator weight4.6 kg
MaterialDepleted uranium
Performance Data
Muzzle velocity1,575 m/s
Target range3,000 m
Chamber pressure

5,600 bars

120mm M829A3 APFSDS-T Ammunition

The M829A3 APFSDS-T, an armor-piercing, fin-stabilized discarding sabot with tracer, is one of eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world. All rounds are fully compatible with 120mm smoothbore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smoothbore cannons. The 120mm training ammunition designs provide low-cost, live-fire training to the tank crew.

The M829A3 round defeats advanced armor at extended ranges. It is the newest design of the U.S. Army's kinetic-energy tank cartridge. With an extended range and improved accuracy, this is the most lethal tank round in the world. The M829A3 utilizes state-of-the-art composite sabot, propellant and penetrator technologies to ensure that U.S. armored forces will maintain battlefield supremacy well into the future.

120mm M830 HEAT-MP-T Ammunition

Orbital ATK's M830 HEAT-MP-T, a high-explosive, anti-tank, multipurpose ammunition with tracer, is one of the eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world. All rounds are fully compatible with 120mm smoothbore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smoothbore cannons. The 120mm training ammunition designs provide low-cost, live-fire training to the tank crew.

The M830 round employs a shaped-charge warhead to defeat both armor and "soft" targets. Full-frontal activation makes the M830 effective on tanks with bar-type spoilers to counter HEAT projectiles. The activation turns the liner into a molten jet. When the jet strikes a target of armor plate, pressures in the range of hundreds of kilobars are produced at the point of contact. This pressure produces stresses far above the yield strength of steel, and the target material flows like a liquid out of the path of the jet (hydrodynamic penetration).

Physical Data
Cartridge height981 mm
Cartridge weight24.2 kg
Propellant typeStick DIGL-RP "solventless"
Propellant weight5.4 kg

Projectile type

Multi-purpose HEAT

Projectile weight13.5 mm
Projectile length842 mm
Performance Data
Muzzle velocity1,140 m/s
Target range2,500 m
Chamber pressure4,800 bars
120mm M830A1 HEAT-MP-T Ammunition

The M830A1 HEAT-MP-T was developed as a replacement for the M830 HEAT round. It has demonstrated a 20 percent performance increase against bunkers and a 30 percent performance increase against light-armored vehicles.

The M830A1 uses a discarding sabot with sub-caliber warhead and a multifunction fuzing system. It has a unique airburst capability that is quickly selectable by the tank crewman. The unique fuzing options and fast time of flight make this round the ultimate warhead in urban warfare.

Known commonly as "MPAT," it was the round of choice in operation Iraqi Freedom.

120mm M831A1 TP-T Ammunition

Orbital ATK's M831A1 TP-T, a target-practice ammunition with tracer, is one of the eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world. All rounds are fully compatible with 120mm smoothbore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smoothbore cannons.

The M831A1 replaced the M831 TP-T. The newer model uses a patented design that provides a near ballistic match to the M830 service shot. The unique design provides a low-cost HEAT trainer that makes live-fire training much more affordable. The short maximum range makes this round desirable for training exercises where range is limited.

120mm M865 TPCSDS-T Ammunition

Orbtial ATK's M865 TPCSDS-T, a cone-stabilized discarding sabot with tracer for target practice, is one of the eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world. All rounds are fully compatible with 120mm smoothbore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smoothbore cannons.

The M865 uses a unique, patented conical fin to provide a flat and accurate trajectory for target ranges. After passing the target range, the projectile velocity drops off sharply to limit the maximum range to 8 kilometers. This safety feature allows for use on U.S. and European ranges where permissible projectile travel is limited.

M865 ammunition provides low-cost, live-fire training to the tank crew.

120mm M908 HE-OR-T Ammunition

Orbital ATK's M908 HE-OR-T, a high-explosive, obstacle-reduction ammunition with tracer, is one of the eight rounds in our line of 120mm conventional tank ammunition, which is the most advanced such ammunition in the world.

All rounds are fully compatible with 120mm smooth-bore weapons on M1A1 and M1A2 Abrams main battle tanks and the Leopard 2 main battle tanks with L44 and L55 smooth-bore cannons. The 120mm training ammunition designs provide low-cost, live-fire training to the tank crew.

The M908 round was developed to destroy obstacles and barriers (concrete, rock, dragon's teeth, etc.) that are set up to stop tanks. The round is a modification of the M830A1 (commonly known as the MPAT) where the front fuze is replaced with a steel nose. This provides penetration into the obstacle before detonation.

The M908 has demonstrated performance better than the 165mm M123A1 HEP.

More Information
​M829A3 Fact Sheet
M830A1 Fact Sheet
M831A1 Fact Sheet
M865 Fact Sheet
M1028 Fact Sheet
M1002 Fact Sheet