ACT police are still searching for a third man who was allegedly involved in assaulting a 20-year-old until he was unconscious in Canberra's north last month.
ACT Policing said the alleged victim had stopped in the suburb of Hawker to offer assistance to a man he thought appeared to be lost about midday on Saturday, July 23.
That man allegedly then assaulted the 20-year-old, along with another two men who had been hiding nearby.
Police said that the 20-year-old was threatened with an icepick before he lost consciousness and that his shoes and wallet were stolen.
Police said the man's account details were then used by his alleged attackers to commit credit card fraud.
When the man regained consciousness he was taken to the Canberra Hospital.
Police investigating the incident executed two search warrants yesterday, and arrested two men, who the ABC understands to be Kobi Guarini, 33, and Kalani Joliffe-Cole, 25.
Officers said that during the searches, they located the items alleged to have been stolen, and a detection dog found firearm components including shells, a barrel, a stock and an item they believed to be a suppressor.
Police said both men appeared in the ACT Magistrates Court yesterday.
It is understood Mr Guarini was charged with aggravated robbery, possession of stolen property and two counts of obtaining property by deception.
Mr Joliffe-Cole is believed to have been charged with aggravated robbery.
