Two men have been arrested by gardai in a major operation which uncovered the four firearms and drugs in Tallaght this morning.
Gardaí also seized approximately €70,000 worth of suspected heroin as well as small quantities of crack cocaine and cannabis.
Gardaí searched three residential properties in Tallaght, Dublin 24 at approximately 7.30 am on Saturday.
During the course of the searches, four firearms were seized along with silencers and ammunition.
Two men, aged in their late 20s, were arrested at the scene. Both men are currently detained under Section 30 of the Offences against the State Act, 1939 in Tallaght Garda station.
Gardai said that the seizure is part of the national anti-drug strategy, Operation Tara, which aims to disrupt drug trafficking networks involved in the sale, supply and distribution of controlled drugs at local, national, and international levels.