Police have made two further arrests over a series of shootings in Ferryden Park in March 2019.
The home in Constable Street was targeted three times during February and March 2019.
No one was injured in the attacks, which police believe to be linked and not random.
On Friday, Detectives from Crime Gangs Task Force arrested a 50-year-old man from Evanston Park and a 42-year-old man from Athol Park over the incidents. Both men were senior members of the Rock Machine OMCG at the time of the offending.
They were both charged with counsel and procure an offence of discharging a firearm where it is alleged they organised the shootings, including providing the firearm used.
Both men will appear in the Adelaide Magistrates Court on Friday 18 December 2020.
It follows on from protracted investigations by Crime Gangs Task Force detectives who previously arrested a 26-year-old Gawler South man on 19 June 2019, a 25-year-old man from Gawler West on 4 July 2019 and a 49-year-old man from Wasleys on 15 August 2019.