More than 1,562 illegal air guns have been handed into north-east police since 2016.
The weapons were given up as part of an amnesty after licencing laws around them changed.
New laws introduced in 2016 make it illegal for anyone to possess an air weapon without a licence.
Bill Howie, a committee member from the Grampian Air Rifle Club, said: “It seems like quite a high number, but when you consider that air rifles have been available for over 100 years, you might get a lot of farmers, and people with them lying in their attic.
“[The amnesty’s] all well and good, if there are people that are holding air weapons without a licence.
“We frown upon it because it brings our sport into disrepute.”
Across Scotland 11,569 were handed in.
The figures were revealed as gun owners holding weapons illegally were today being urged to hand them into north-east police stations in a new amnesty.
Police want to take illegal firearms off the streets and are offering their owners a deal – “bring them and go free”.
The campaign, which runs until July 1, follows a similar scheme in 2016 where people were encouraged to hand in air weapons when legislation changed to tighten the rules around ownership.
Police want people to give up any kind of firearms, including replica weapons, air weapons, BB guns, imitation firearms, ammunition component parts and other ballistic items.
Assistant Chief Constable Bernard Higgins said: “Protecting the public sits at the heart of everything we do and the purpose of the firearms surrender campaign is to remove firearms from criminal availability, thereby reducing the risk of harm to the public and our communities.”
Police figures show there were four recorded incidents of reckless conduct with a firearm in the north-east in the 12 months up until March 31 2018. Three of those were detected.
There were nine such incidents in the preceding 12 months – six of which were detected.