Police have seized a pistol, multiple bags of ammunition and drugs after searching a Waratah property on Wednesday.
Newcastle detectives searched the Stannett Street property, arresting an 18-year-old man at the scene.
Police said they acted on information received to make the search.
It uncovered a .22 calibre loaded pistol, multiple bags of .22 calibre ammunition and shot gun shells, laptops, mobile phones and small quantities of cannabis, methylamphetamine and ecstasy.
The teenager was released pending further inquiries.
Anyone with information is urged to call Crime Stoppers on 1800 333 000.