The four males, one aged in his 60s, one in his 20s, and two juvenile youths, who were arrested in connection with aggravated burglary at a residence in Shanganagh Cliffs, Shankill, Co Dublin, on Wednesday, have since been charged.
During the course of the aggravated burglary, four individuals entered the home of a couple in their 60s and assaulted and threatened the couple with a firearm.
The four individuals left the scene in a vehicle and an electric bike.
The owner of the home, a man in his 60s, was removed from the scene to St Vincent's University Hospital for non-life threatening injuries.
Gardaí immediately responded to the incident and a search of the area took place by gardaí attached to Shankill Garda station.
Gardaí arrested three individuals when they stopped a vehicle and a fourth individual was arrested a short distance away who was on a electric bike.
During the course of the search of the area a semi-automatic firearm was recovered.
All four are due to appear before Dublin District Court at the Criminal Courts of Justice on Saturday.
