The widely used M109 carries a 155-mm howitzer and is the principal self-propelled artillery support for ... Later versions, including the M109A6 Paladin, have a 39-caliber barrel.

The Paladin, produced in a quantity of 950 units, was introduced into service in the last decade of the 20th century and has become the cornerstone of American tube artillery. In parallel with the ...

Smoke clears after a U.S. Army M109-A6 Paladin Self-Propelled Howitzer operated by A Battery, 4th Battalion, 27th Field Artillery, Division Artillery (DIVARTY), 1st Armored Division, fires its 155 ...