Police executed a search warrant at an address in Waverley yesterday morning with the assistance of Armed Offenders Squad staff.
As a result of the warrant two firearms, ammunition, methamphetamine, cash and a large number of cannabis plants were located.
A 36-year-old man was arrested and charged with unlawfully possess firearm, unlawfully possess ammunition, possess methamphetamine, possess for supply - cannabis and cultivate cannabis.
He has been remanded in custody to reappear in the Whanganui District Court on Tuesday 25 August.
Issued by Police Media Centre