NORTHAMPTON, Mass. (AP) — Authorities say 273 guns were turned in during a gun buyback held over the weekend in Franklin and Hampshire counties.

The Northwestern district attorney's office says more than a dozen of the guns appear to be antiques and will be assessed at the Springfield Armory for possible historic value. The rest will be destroyed.

Under the program, residents could turn in unloaded guns to the Northampton and Greenfield police departments in exchange for a $50 gift card. Ammunition was also accepted.

The district attorney's spokeswoman says the aim was to get unwanted guns out of homes so they could not be used in crimes or suicides.

Firearms collected included a 9 mm semi-automatic handgun, a .357 Magnum and a .38 Special, as well as rifles and shotguns.