set gun vs spring gun

set gun and spring gun both are nouns.

Word	Noun	Adjective	Verb	Adverb
set gun	Yes	No	No	No
spring gun	Yes	No	No	No

As nouns, set gun and spring gun are synonyms defined as:

set gun and spring gun: a gun that is set to fire on any intruder that comes in contact with the wire that sets it off

set gun (noun)	spring gun (noun)
a gun that is set to fire on any intruder that comes in contact with the wire that sets it off	a gun that is set to fire on any intruder that comes in contact with the wire that sets it off