Within days one of the robbers was caught by police but the second man has so far eluded them.
A man appeared in court a month ago over the robbery and has been remanded in custody.
Earlier this week Detective Sergeant Chris Power said Manson, a gang associate, had access to firearms and was a risk to the public.
"He should be treated as armed and dangerous," he said.
The Armed offenders Squad has been helping detectives search houses for Manson, though none were raided yesterday.
On Monday, heavily armed AOS members, hit a Dallington house where it was believed Manson may have been hiding out.
An off-duty police officer had seen Manson, but police said had left the address before the AOS arrived.
