Design and role
The manufacturer emphasises transportability in its description. A towed gun’s own mass does not include the support vehicles, crew equipment or ammunition carried by a unit.
FORCETALLY
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Artillery2005–presentProfile in progress
M777 is a lightweight towed howitzer in BAE Systems’ artillery catalogue. The weapon, towing vehicle and ammunition should be treated as separate parts of a complete artillery capability.
United KingdomTechnical data
Towed howitzer
United Kingdom
2005–present
See Operators
Global war on terrorism War in Afghanistan Iraqi conflict Iraq War War in Iraq (2013–17) Syrian civil war Yemeni Civil War (2014-present) Saudi Arabian-led intervention in Yemen Russo-Ukrainian War Russo-Ukrainian war
Vickers Shipbuilding and Engineering
1987–2003
BAE Systems
1987–present
4.2 t (4.1 long tons; 4.6 short tons)
Combat: 10.7 m (35 ft) Travel: 9.5 m (31 ft)
5.08 m (16.7 ft) L/33
7+1
M107 , M549 , M712 Copperhead , M795 , ERFB, M982
155 mm (6.1 in)
Split trail
0° to +71.7°
Normal: 2-4 rpm Maximum: 8 rpm for no longer than 2 minutes
Charge 8S: 827 m/s (2,710 ft/s)
M107 : 21 km (13 mi) M795 : 23.5 km (14.6 mi) ERFB: M795E1 30 km (19 mi) base bleed Excalibur : 40 km (25 mi)
Software updates and the Platform Integration Kit (PIK) hardware will give the M777A2 the capability to fire the Excalibur precision guided munition. The specifications of the Excalibur-compatible howitzer are: • Weight: 10,000 pounds or lighter with TAD • Emplace: Less than three minutes • Displace: Two to three minutes • Maximum range: 30 km(assisted)
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
The system in detail
The manufacturer emphasises transportability in its description. A towed gun’s own mass does not include the support vehicles, crew equipment or ammunition carried by a unit.
Published firing range depends on the ammunition and test conditions. A comparison should identify the shell and configuration, and should not treat a weapon’s technical firing rate as a sustained operational output.
M777 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
AustraliaArmy exact named equipment holdings: M777A2. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / TOWED 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Reported count for M777 howitzer. Service scope: Australian Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): number: 48. Origin: United Kingdom United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
CanadaArmy exact named equipment holdings: M777. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
IndiaArmy exact named equipment holdings: M777A2. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Saudi Arabia
UkraineArmy exact named equipment holdings: M777A2. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
United StatesUS Army exact named equipment holdings: M777A2. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Australia, Canada, India, Saudi Arabia, Ukraine, United States
Equipment reference ↗Reported count for BAE Systems M777. Service scope: Indian Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 145. Origin: United Kingdom India. The listed variants/roles are the scope, not an immediately deployable count. Dates are the count-cell citations' stated source period (2023), not the article revision. Cited source 2023-09-16; Cited source 2023-02-20. Edition or publication years do not claim an exact inventory census day.
US Marine Corps exact named equipment holdings: M777A2. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: ARTILLERY / 155mm. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Reported count for M777. Service scope: United States Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): numbers: 1,000. Origin: United Kingdom United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.