Collocations for firearm - noun

imitation (BrE), replica
unlicensed
loaded
concealed
defensive (AmE)

be in possession of, own, possess
The police charged her with possessing an illegal firearm.

carry
lock up, store
handle, use
new army recruits learning how to handle firearms

discharge

training
enthusiast, expert, instructor
dealer, retailer
sales
business, industry
company, manufacturer
owner
ownership, possession
certificate (BrE), licence/license
safety
law
offence/offense (esp. BrE)
He is wanted for robbery and firearms offences/offenses.

accident
death