The buyback at United Playaz in San Francisco is from 8pm until noon at 1038 Howard St.
You can get $100 for a hand gun or $200 for a semi-automatic weapon, no questions asked.
RELATED: San Francisco's semi-annual gun buyback is this weekend
Santa Clara County is holding a buyback at the Gilroy Corporation Yard at 613 Old Gilroy St. from 9 a.m. to 2 p.m.
In Vallejo, there is a buyback on the Solano County Fairgrounds at 900 Fairgrounds Dr. from 9 a.m. to 2 p.m.
In San Mateo County, there's a buyback at 1000 Skyway Road in San Carlos from 9:30 am until 2:30 pm.