The M198 155mm howitzer is a towed field artillery piece of a split trail carriage design. It is equipped with a double baffle muzzle brake and a variable length hydropneumatic recoil mechanism. The M198 is capable of providing fire support in both indirect and direct fire capacities. It is air-transportable by C-5 or C-17 aircraft, and can be slung externally by CH-47 or CH-53E heavy lift helicopters, however it is not compatible with the V-22 Osprey.