Surprising things show up when you offer to buy back people's guns, no questions asked. You end up seeing everything from wallet guns to AK-47s, fully-loaded Tec-9s to, most recently, rocket launchers! Yup, rocket launchers.

In a recent two-day gun buy back in Trenton, New Jersey, officials say they bought up more than 2,600 firearms including a rocket launcher, banned-in-NJ semi-automatic rifles, sawed-off shotguns and more. According to Attorney General Jeffrey Chiesa, whose office led the program, roughly $324,000 in state criminal forfeiture proceeds were used in the wildly popular no-questions-asked buyback program. How much of a success was it? They had to give out $100,000 in vouchers because they ran out of cash four hours into the program's second day!

Those who brought in weapons were allowed to sell them without showing ID. For their trouble they received $25 for BB guns, $50 for inoperable guns, $150 for revolvers, rifles, semiautomatic handguns and shotguns, and $250 for assault rifles and illegal guns. At least 25 percent of the guns received were illegal weapons such as sawed-off shotguns, Mercer County Prosecutor Joseph Bocchini Jr. said.

The Trenton sale comes after another successful sale in Camden in which close to 1,200 weapons were brought in. The state plans on holding more buy backs soon.