SEATTLE — The meet was set by police for 1:20 p.m. on Lenora Street.
The woman arrived and sold the undercover police officer a small amount of narcotics and a .44 caliber revolver.
The 24-year-old woman was taken into custody.
Officers then served a search warrant on her address, where they found a handgun, pills, and $800 in cash.
The woman was booked into King County Jail for drug and firearm charges.