weaponry
arsenal / arms / munitions / weapon design
Noun
This term refers to a collective body of arms or the technical field of their creation. It carries a clinical, systemic connotation, focusing on the scale of an arsenal or the industrial process of production rather than individual tools of combat. Grammatically, this is a mass noun. It is always uncountable and cannot be pluralized as weaponries. To refer to a single item, one must use the word weapon or a partitive construction such as a piece of weaponry.
Meanings
Noun
The weapons of a particular type, or all the weapons used by a particular group or nation.
"The country has invested heavily in advanced naval weaponry."