A 27-year-old man was arrested after a person was threatened at gunpoint in a Dublin bar.
The man was stopped and searched by gardaí on Davitt Road in Inchicore, close to the scene, late yesterday afternoon and a handgun was found.
Several rounds of ammunition were also discovered in follow up searches of the area.
A garda spokeswoman said nobody was injured during the incident in the bar.
The man is being held at Kevin Street garda station.
The weapon and ammunition will be sent to the ballistics section of Garda Headquarters for analysis.