A man from Bowral has been charged with a number of alleged firearms offences.
Around 11:30 on Friday Night Police attended a car park in Mittagong where they spoke to a small group of men.
Officers found several pellets in a container near a vehicle.
A further search uncovered an air rifle and pistol which could be used to fire the pellets.
The 24 year old has been issued with a court attendance notice and is due to appear in Moss Vale Local Court next month.
Superintendent Chris Schilt from the Hume Police District says firearms are illegal to possess, without a licence of permit in NSW.
He's asking people to do the necessary checks with licensing Police and the Firearms Registry, before making a purchase.
IMAGE CREDIT: Guns seized by Hume Police District