Gardaí seized arms and drugs in north Co Dublin yesterday evening.
The assault rifles, a shotgun, a handgun and ammunition as well as cocaine with a street value of €75,000 were found in an open area on Kinsealy Lane, Malahide at about 5.30pm yesterday.
The discovery was made after a planned search, according to the Garda.
No arrests have been made in the investigation yet.
Earlier this month firearms and weapons were found in Meath and Dublin as part of a Garda investigation into organised crime.
Gardaí found a handgun after they searched a house in Finglas on September 11th and in a related incident they seized a crossbow and a handgun after they searched a house in Navan.
The day before, a man in his 40s was arrested in Ballymun, after gardaí recovered three sawn-off shotguns and two handguns.