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Land ForcesUnited States

M110A2

203mm self-propelled howitzerFielded 1980Pending verification
Land ForcesUSA
Identification silhouette. Not drawn to scale between entries.
Fact cardConfidence · Source
System
Type203mm self-propelled howitzer
Date of introduction1980
ProliferationAt least 11 countries
ManufacturerGeneral Motors Corp.Med[1]
Crew5Med[1]
Displacement time1 minMed[1]
Emplacement time1 minMed[1]
Dimensions and weight
Width3.15 m10 ftMed[1]
Combat weight31.2 tMed[1]
Automotive performance
Chassischassis identical to the M110'sMed[1]
Engine1 x Detroit Diesel 8V-71T EngineMed[1]
Engine power805 hpMed[1]
Cruising range523 km325 mi · 282 nmiMed[1]
Max road speed55 km/h34 mph · 30 ktMed[1]
Cross-country speed15 km/h9 mph · 8 ktMed[1]
Fording depth1.2 mMed[1]
Suspensiontorsion bar, 5 roadwheels, front drive, last road wheel acts as rear idler, shock absorber on each roadwheel, no return rollers ability to lock suspension out when firing rear-mounted hydraulic spade for bracing firing platform.Med[1]
Protection
Hull Armor20-mm maximum (estimated)Med[1]
Turret Armor20-mm maximum (estimated)Med[1]
NBC ProtectionYesMed[1]
Armament
Rate of fire (max)2+ rd/minMed[1]
Max elevation+65 degMed[1]
Min elevation-2 degMed[1]
Main armamentM201 Howitzer, 203mm HowitzerMed[1]
Maximum firing range32.2 km20 mi · 17 nmiMed[1]
Fire control
Thermal Sight Vehicle CommanderInfrared night-vision equipmentMed[1]
Thermal Sight GunnerInfrared night-vision equipmentMed[1]
Main Gun StabilizationYes, The large spade at the rear is required for the massive recoil.Med[1]
Variants
M110A1M110A1, improved variant of the M110, fitted with a longer M201 203 mm/L37 howitzer. It entered service in 1971. Maximum range of fire was increased to 27 km. This self-propelled howitzer fires newly developed rocket-ass[1]
Weapons and payload options · 3Confidence · Source
HERA (Charge 9)203 mm ammunition
Med[1]
Range
30 km19 mi · 16 nmi
Quantity
2 ea
Muzzle velocity
710 m/s
Projectile weight
90.78 kg
Fuze
INA
DPICM203 mm ammunition
Med[1]
Range
22.5 km14 mi · 12 nmi
Quantity
2 ea
Muzzle velocity
711 m/s
Projectile weight
96.6 kig
Fuze
INA
HE203 mm ammunition
Med[1]
Range
22.9 km14 mi · 12 nmi
Quantity
2 ea
Muzzle velocity
711 m/s
Projectile weight
92.53 kg
Fuze
INA
Summary

The M110A2 is the largest available self-propelled howitzer in the Army's inventory. It is deployed in division artillery of general support battalions and in separate corps- and Army-level battalions.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
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Operators
United StatesBahrainEgyptGreeceIranJordanJapanMoroccoPakistanTürkiyeTaiwan
Sources
  1. M110A2 American 203mm Self-Propelled Howitzer (SPH), U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)
    Published/updated 2026-03-20 · Tier 1 · checked 2026-10-10
Change log
  • 2026-10-10 Entry created from the Worldwide Equipment Guide (ODIN), bulk import