Part of a horde of antique handguns stolen from a community-run museum has been recovered after the weapons were modified to become operational.
Police searched a property in Nowra, on the NSW south coast, on Thursday morning and seized more than a dozen firearms as well as 10,000 rounds of ammunition.
They also took custody of a 3D printer and printed firearm parts, $64,700 in cash, 2.3kg of cannabis, and a buggy and two motocross bikes believed to be stolen.
Two men, aged 25 and 29, were arrested and each charged with more than 20 firearms offences.
Police believe six of the seized guns were stolen from the Lithgow Small Arms Factory in August.
The men were refused bail to appear before Nowra Local Court on Friday.
Three other men were arrested and charged with the theft in September, when they were accused of stealing 27 commemorative guns from the museum for a profit-driven heist.
The weapons included one from the 1700s and a pistol gifted by the Sultan of Oman.
Detectives were told the handguns, worth more than $200,000, could be made operational with modifications.
Some of the guns might have been sold to "unwitting" members of the public, police said previously.
People would not face prosecution if they turned in the weapons to a registered firearms dealer or police station, investigators said.
The six guns seized in the latest raid had all been made operational, while another eight stolen weapons remain unaccounted for.
The volunteer-run museum opened in 1998 on the site of a former small-arms factory, which was established in 1912.