By Sydney J. Freedberg Jr. on May 18, 2021 at 2:28 PM A Humvee mounting a low-recoil 105 mm howitzer WASHINGTON: The Army is checking out two sizes of a unique low-recoil howitzer system: a 155mm gun on a 6×6 truck, Brutus, and a 105mm on a 4×4 Humvee, Hawkeye. That’s an extraordinarily small vehicle to mount an artillery piece, and reducing recoil is the key to making it work. The “soft recoil” system was developed by Mandus Group and integrated on vehicles by Humvee manufacturer AM General. By shifting the howitzer barrel forward and installing better hydraulics, the system red...