The M10 Booker is an American assault gun[1] produced by General Dynamics Land Systems (GDLS) for the United States Army.

The M10 was developed from the GDLS Griffin II armored fighting vehicle as the winner of its Mobile Protected Firepower (MPF) program in June 2022.

[8][9] The vehicle has been called a light tank by some military officers and defense media due to its design and appearance,[10][11] although Army officials related to the MPF program consider this incorrect.

"[1] A spokeswoman for the Army’s Program Executive Office Ground Systems, Ashley John, stated in 2022 that the "MPF is not designed to be able to engage enemy tanks".

Robert Booker was killed on 9 April 1943 during the Tunisian campaign of World War II, and was posthumously awarded the Medal of Honor.

[28] The M10 Booker was developed to address a critical gap in U.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.

[30] It incorporates modular armor, smoke grenade launchers, ammunition stowage blowout panels, and an automatic fire suppression system to enhance battlefield survivability.

The Army envisions the M10 Booker as a crucial asset for IBCT operations, particularly in forced and early entry missions where anti-access/area denial (A2/AD) conditions exist.