Police discovered a cannabis crop and ammunition at a property west of Tamworth.
About 10.10am on Wednesday, officers from Oxley Police District executed a search warrant at a property on the Duri-Wallamore Road at Bithramere.
During the search, police seized 21 cannabis plants, cannabis leaf, drug paraphernalia and ammunition which they allege was not stored securely.
Police also seized a registered firearm at the scene and has issued a 50-year-old man with a firearms suspension notice.
Inquiries are continuing.