More than 70 weapons were recovered during the first week of Northamptonshire Police’s guns amnesty.
Among items handed over to the force by members of the public were working guns which would have been deadly if they had fallen into the wrong hands.
Insp Sarah Johnson, who is leading the amnesty, said: “We’ve been really delighted to receive such a huge amount of support from the people of Northamptonshire.
“We’ve had 67 firearms handed in as well as a number of knives and a large amount of ammunition.
“We certainly didn’t expect to receive as many hand guns as we have and we’re really pleased with the way the amnesty is going.”
Among the items collected by officers so far have been nine revolvers, nine shotguns and 16 rifles.
Other weapons have included several knives, a samurai sword, 12 imitation firearms, eight air rifles, eight air pistols, three BB guns, a bolt gun and eight collections of ammunition.
Insp Johnson said: “These weapons were all available for circulation and could have fallen into the hands of people who would have wanted to use them criminally.
“And some of them were simply stored in sheds and garages - they were not locked away securely - which is a real concern.”
The amnesty is designed to give people the chance to surrender unlawfully held guns, ammunition, replica guns or air weapons. People can also surrender lawfully held items which are no longer wanted.
So far, the majority of weapons which have been handed in have not been licenced, but it is not believed that any of them have been used in criminal activities.
The amnesty will run until September 28. To take part, people are urged to phone 101 to request an appointment to hand over a weapon.