A firearm buyback day was held at police stations throughout Marin in September. The goal of programs like this — sweetened with a monetary incentive and amnesty — is to reduce the number of deadly weapons owned by civilians. The September buyback saw all kinds of guns turned in by owners in Marin and many surrounding counties. “There were long rifles, shotguns, sawed-off shotguns, pistols and semiautomatic handguns,” District Attorney Edward Berberian says. Some of the more unnerving weapons included an MP5 submachine gun and a couple of AK-47s. “The MP5 is a fully automatic firearm used in the past by Navy SEALs and clearly not a legal or appropriate firearm for the private citizen,” he adds. Here are some other figures from the buyback.