A 50-year-old man was arrested on suspicion of firearms offences after police found blank firing weapons and ammunition at a house in Heswall.
Merseyside Police officers, supported by the North West Regional Organised Crime Unit disruption team searched the address in Poll Hill Road on Thursday morning.
A handgun and revolver, which were both blank firing weapons, were recovered, along with ammunition.
They have been taken forensic analysis to establish if they are connected with any incidents in Merseyside.
The man was arrested on suspicion of possession of an illegally held firearm, possession of ammunition and possession of cannabis. He has been released under investigation.
Inspector Chris Lucan-Pratt said: "As the images show, the weapons we seized this morning could have been used to create significant fear and harm in our communities.
“Our streets are made safer with every weapon we take out of circulation, and every arrest we make in relation to firearms possession.
"The people who are still intent on carrying and storing such weapons should sleep less soundly knowing that their door might be the next one we come knocking at.
"Operation Target has seen great success in disrupting serious and organised crime, seizing the drugs offenders involved peddle and taking their weapons off them.
"We will now look into whether these guns are linked to any incidents involving firearms and take appropriate action.
"Be assured if you tell us where guns are being stored, we will take firm action to take them off the streets and pout the people who store them before the courts."
Anyone with information about those involved in gun crime, or who knows where weapons are being stored should contact Merseyside Police social media desk via Twitter @MerPolCC or Facebook ‘Merseyside Police Contact Centre’.
You can also contact the independent charity Crimestoppers anonymously on 0800 555 111, or via their website https://crimestoppers-uk.org/give-information/forms/give-information-anonymously.