A gun disguised as a pen has been seized and 31 people arrested as police cracked a criminal syndicate peddling illegal drugs between NSW and Tasmania.
More than $2.7 million of the drug ice, cocaine and cannabis were nabbed across an 18-month investigation by state and federal police.
Six guns, including the pen gun, were found in Tasmania.
More than $186,000 in cash and encrypted mobile phones were also seized in both states.
"Pen guns are a concern because they can be easily concealed," Detective Inspector Kate Chambers told reporters on Friday.
"The size should not deceive us. That firearm is just as lethal as any other."
More than 40 search warrants were executed at properties on the mainland and in Tasmania.
The alleged syndicate is based in southern Tasmania.
Police have laid 24 drug trafficking charges, plus others for drug and firearm offences and dealing in the proceeds of crime.
"The individuals involved in this investigation have a long-established relationship in relation to the importation of drugs between NSW and Tasmania," Det Isp Chambers said.
The arrests were linked to the extradition of three people from NSW in March, and a Queensland man in April.
Police say further charges are likely and more searches will be undertaken in Tasmania as part of what they describe as a complex investigation.