Sussex police are advising people across the county who are using air weapons or BB guns to use them legally.
It follows from recent calls to the police from members of the public who are concerned about seeing people carrying the guns in open spaces.
Recently, armed officers were called to two incidents where bystanders believed they had seen firearms being seen in public.
In both cases, the weapons were not viable firearms, but looked realistic and caused public concern.
All air weapons and air soft guns must be used on private property and have the permission of the property owner.
They must also be two-tone in colour to clearly demarcate them from being an illegal firearm.