weaponry vs instrumentality

weaponry and instrumentality both are nouns.

Word	Noun	Adjective	Verb	Adverb
weaponry	Yes	No	No	No
instrumentality	Yes	No	No	No

As nouns, instrumentality is a hypernym of weaponry; that is, instrumentality is a word with a broader meaning than weaponry:

weaponry: weapons considered collectively
instrumentality: an artifact (that is instrumental in accomplishing some end) for accomplishing some end

Other hypernyms of weaponry include instrumentation, means.

weaponry (noun)	instrumentality (noun)
weapons considered collectively	an artifact (that is instrumental in accomplishing some end) for accomplishing some end
	the quality of being instrumental for some purpose
	a subsidiary organ of government created for a special purpose