Police received reports of a man with a gun at an Olliviers Rd house in Phillipstown on Monday morning.
The armed offenders squad was sent to the house and the man was arrested shortly after.
There have been no reports of injuries.
The man is due to appear in the district court on Tuesday, charged with unlawful possession of a firearm, presenting an object like a firearm, and possession of utensils for methamphetamine.