Norman, yes, ammunition is 9mm Luger which is standard 9x19 , Luger, Parabellum which are all designations for 9mm. The J90C922LE is the Law Enforcement version that includes an extra Magazine over the J90C9RO.

Norman - yes, anytime any modern pistol is designated as "9mm" it uses 9mm Luger, or 9mm parabellum, which are both called "9mm" in practice. Any item with "LE" after the model is designated as the :Law Enforcement model, and in the case of pistols, usually includes one extra magazine above and beyond what comes with the 'non LE' model. The prices will be different, usually, because of the Law Enforcement discount Beretta provides to LE Personnel.