Pistol or rifle (3)
I believe the answer is:
gun
This clue is a double definition.
'pistol' is the first definition.
(I've seen this in another clue)
'rifle' is the second definition.
(thesaurus)
(Other definitions for gun that I've seen before include "What has barrel" , "Platform from which to shoot" , "Hired killer" , "An offensive weapon" , "Hand weapon" .)