| M10 Booker | |
|---|---|
 M10 Booker at its unveiling in June 2023 | |
| Type | Assault gun[1] Armored infantry support vehicle[2] |
| Place of origin | United States |
| Service history | |
| In service | 2024–2025 (testing)[3] |
| Used by | SeeOperators |
| Production history | |
| Designer | General Dynamics Land Systems |
| Developed from | ASCOD 2 |
| Specifications | |
| Mass | Roughly 38–42 tonnes (37–41 long tons; 42–46 short tons)[4][5] |
| Crew | 4 (commander, gunner, driver, loader) |
Main armament | 1 ×105 mmM35 tank gun |
Secondary armament | 1 ×12.7 mmM2HBheavy machine gun 1 ×7.62 mmM240Bmachine gun |
| Engine | Diesel MTU 8V199 TE23[6] 15.9 L, 800 hp (600 kW) |
| Transmission | Allison Transmission 3040 MX cross-drive |
| Suspension | Hydropneumatic[7] |
Operational range | 250–350 mi (400–560 km) |
| Maximum speed | 40 mph (64 km/h)[8] |
TheM10 Booker is an Americanassault gun[1] produced byGeneral Dynamics Land Systems (GDLS) for theUnited States Army. The M10 was developed from theGDLS Griffin II armored fighting vehicle as the winner of itsMobile Protected Firepower (MPF) program in June 2022. The initial contract was for 96low rate initial production (LRIP) vehicles, the first of which were delivered in February 2024.[9][10]
The Army canceled the Booker in 2025, primarily due to its excessive weight. The Army had taken delivery of at least 26 vehicles before the program's cancelation. These have an uncertain future and may be transferred to armored units, sold abroad, or placed in storage.
The vehicle has been called alight tank by some military officers and media due to its design, thinner armor and appearance,[11][12] despite Army officials connected to the MPF program pointing out the statement as false.[11][13][14] The vehicle weighs about 38–42 tons (roughly the same weight as aT-72A),[5] which is equivalent to variousmedium and older Russianmain battle tanks operated by other nations.[15] Due to its light armor and weight, it is not fit to be described as a typical tank by modern standards, and will essentially serve the role of anassault gun based on its description.[15]
The defense industry magazineESD (European Security & Defence) reported in January 2025 thatthe Pentagon had spoken out against the light tank characterization, stating: "The primary objection to the light tank label is found in the vehicle’s mission statement, which is to provide direct fire to neutralize obstacles typically faced by infantry, such as bunkers, gun emplacements or light armored vehicles."[1]
Ashley John, a spokeswoman for the Army’s Program Executive Office Ground Systems stated in 2022 that the "MPF is not designed to be able to engage enemy tanks".[1]Major General Glenn Dean, Program Executive Officer for Ground Combat Systems, separately stressed that "light tanks" historically have performed reconnaissance functions, "and this is not a reconnaissance vehicle, it’s an assault gun".[1]
A later quote by Maj. Gen. Glenn Dean states:
The M10 Booker is an armored vehicle that is intended to support our Infantry Brigade Combat Teams by suppressing and destroying fortifications, gun systems and trench routes, and then secondarily providing protection against enemy armored vehicles.
— Maj. Gen. Glenn Dean, program executive officer of Army Ground Combat Systems[13]
According to Lt. Col. Pete George,product manager for the M10 Booker Combat Vehicle, the vehicle is defined as an "armored infantry support vehicle".[2]
Derived from the Austrian-SpanishASCOD 2infantry fighting vehicle-platform,[16][17] the GDLS Griffin II was developed under the Army's MPF program. In accordance with the program's caliber requirements, it incorporated a105 mmM35 tank gun and a redesigned chassis.[18][19][20]
The M35 was originally designed and developed byBenét Laboratories,Watervliet Arsenal, in 1983 for the Marine Corps' Mobile Protected Gun Program. It was later incorporated in the Army'sM8 Armored Gun System light tank, which was canceled in 1996.[21][22] The M35 is about 1,800 lb (816 kg) lighter than theM68 tank gun used on theM60 tank.[23]
In December 2018, GDLS was selected, along withBAE Systems, to develop prototypes.[24] GDLS presented its first prototype in April 2020.[25] BAE's M8 AGS proposal was disqualified in March 2022.[26] In June 2022, GDLS won the MPF program competition and was awarded a contract worth up to $1.14 billion to build up to 96 vehicles.[27][28][9] The first lot consisted of 26 vehicles.[28]
The MPF was officially designated "M10 Booker" in June 2023, named for American soldiers PrivateRobert D. Booker and Staff Sergeant Stevon Booker. Robert Booker was killed on 9 April 1943 during theTunisian campaign of World War II, and was posthumously awarded theMedal of Honor. Stevon Booker was killed on 5 April 2003 during a "Thunder Run" in the2003 invasion of Iraq, and was awarded theDistinguished Service Cross.[5][29]
The M10 Booker was developed to address a gap inU.S. Army Infantry Brigade Combat Teams (IBCTs) by providing a mobile, protected, direct fire capability to neutralize enemy fortified positions, heavy machine guns, and armored vehicle threats. The U.S. Army planned to field 14 M10 Bookers per IBCT, ensuring enhanced firepower and maneuverability in both offensive and defensive operations.[30]
The M10 Booker features a fully tracked chassis, a four-person crew, and is armed with anM35 105mm main gun controlled by the same fire control system as theM1A2 Abrams, along with anM240C 7.62mm coaxial machine gun, and anM2 .50 caliber machine gun for the commander.[31] It incorporates modular armor, smoke grenade launchers, ammunition stowageblowout panels, and an automatic fire suppression system to enhance battlefield survivability. The Booker is also equipped withSafran Optics 1's PASEO Commander's Independent Tactical Viewer (CITV) to increase the commander's situational awareness and to improve targeting capabilities.[32]
A feature of the M10 Booker is its air transportability, with its 38-ton weight allowing two M10 Bookers to be carried in a singleC-17 Globemaster III, whereas the C-17 can only carry oneAbrams tank,[33] supposedly enhancing rapid deployment capabilities. The Army wanted a vehicle capable of being airdropped, however at 38 tons, the Booker cannot be airdropped.[citation needed] The Army envisioned the M10 Booker as a crucial asset for IBCT operations, particularly in forced and early entry missions whereanti-access/area denial (A2/AD) conditions exist.[34][35]
The U.S. Army took delivery of the first production vehicle in February 2024.[36] The M10 underwent testing and evaluation in Arizona and Alaska in early 2025.[37] In May 2024, the U.S. Army issued a solicitation for full-rate production;[38] however, this solicitation was cancelled in May 2025 after approximately 26 vehicles were produced.[30]
The Army was initially set to procure up to 504 M10s, all of which would have been allotted to lightdivisions in the active duty and National Guard. The82nd Airborne Division became the first unit equipped when 33 M10s entered theFort Bragg motor pools in late FY2025, while other M10s were distributed toFort Campbell with the101st Airborne Division, toFort Carson with the4th Infantry Division, and toFort Johnson at the Joint Readiness Training Center; however, the future use of the M10, if any, is in doubt.[39]
Equipping the 101st Airborne Division atFort Campbell, Kentucky, with the Booker was complicated by an analysis that determined that most bridges on the base were not capable of supporting the vehicle's weight.[39]
In April 2025, Army’s chief technology officer Alex Miller told a reporter that the Booker was an example of "the requirements process creating so much inertia that the Army couldn't get out of its own way".[39] In May 2025,Army SecretaryDan Driscoll andArmy Chief of Staff GeneralRandy A. George published "Letter to the Force: Army Transformation Initiative." This letter was in response toSecretary of DefensePete Hegseth's April 2025, memorandum for senior Pentagon leadership titled "Army Transformation and Acquisition Reform." The Army Transformation Initiative directive stated that the Army would "end procurement of obsolete systems, and cancel or scale back ineffective or redundant programs." The Department of Defense announced in May 2025 that the Booker program was being cancelled. Driscoll indicated that the program was cancelled primarily due to its heavy 42 ton weight.[30][40][41] Driscoll derided the Booker as a "heavy tank" and called the program "a classic example ofsunk cost fallacy, and the Army doing something wrong".[42]
As of June 2025 program costs exceeded $1 billion and the Army had taken delivery of 26 vehicles. Vehicles in final stages of production will be accepted by the Army.[43] The vehicles have an uncertain future and may be transferred to armored units, sold abroad, or placed in storage.[citation needed]
United States Army – 26 (some additional tanks under production)[30]International:
This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain.
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Media related toM10 Booker at Wikimedia Commons
| Main battle | |
|---|---|
| Light /medium | |
| Prototypes, experimentals | |
Background:History of the tank,Tank classification | |
