A man and a woman are due to appear in court after firearms and ammunition were seized by gardaí in Dublin last week.
On Friday afternoon, officers attached to the Blanchardstown District stopped a car on the Old Navan Road.
The two people in the car were found to be in possession of a pistol and ammunition, gardaí said.
A man aged in his 20s and a woman aged in her 30s were arrested at the scene and were detained at a Garda station in Dublin under section 30 of the Offences Against the State Act, 1939.
Follow-up searches were then carried out on Friday evening at two addresses in Dublin.
During the course of these searches, two more firearms were seized, including a submachine gun and a sawn-off shotgun, as well as ammunition.
All three seized firearms and ammunition have been sent for analysis by the Garda National Technical Bureau.
The pair have been charged and are due to appear before Blanchardstown District Court on Monday morning.