means vs weapons system

means and weapons system both are nouns.

Word	Noun	Adjective	Verb	Adverb
means	Yes	No	No	No
weapons system	Yes	No	No	No

As nouns, weapons system is a hyponym of means; that is, weapons system is a word with a more specific, narrower meaning than means:

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

means (noun)	weapons system (noun)
to have the ability to produce a particular effect or achieve an end	weapons considered collectively
an artifact (that is instrumental in accomplishing some end) for accomplishing some end
considerable capital (wealth or income)