Thugs beat up a middle-aged couple and fired shots at their son as they stole two licensed shotguns from their home.
The couple were taken to hospital after their ordeal, but were later discharged after treatment.
Last night, gardai were hunting three men who made their getaway from the family's home at Red Gap, Rathcoole, west Dublin, in a dark-coloured Opel Vectra hatchback car.
Des and Margaret Perry were attacked when they opened the front door of their house shortly after 9pm on Tuesday after they heard a knock on a window.
Mr Perry (57) was struck on the head with a hammer and then pushed back into the house, while his terrified wife was thrown to the ground.
Two of the raiders, who wore wigs and masks, forced Mr Perry to hand over the keys to a safe, where they grabbed two double-barrelled shotguns, ammunition and a sum of cash.
As they were about to make their escape, the couple's son, Craig (29) arrived home and saw the men leaving the house.
He attempted to block the roadway with his van but one of the raiders, armed with a handgun, fired two shots at him.
He was not injured and raised the alarm as the raiders sped away in the direction of Rathcoole village.