A 53-year-old Plymouth Avenue man and an 18-year-old Buffalo man have pleaded guilty in the armed robbery of a 21-year-old woman during an armed holdup at a McDonald’s restaurant on Niagara Street last Aug. 12.

Carl Graves pleaded guilty as charged to second-degree robbery, and Charles Clarke III pleaded guilty to an attempted burglary charge, both before State Supreme Court Justice M. William Boller. Erie County District Attorney Frank A. Sedita III said Graves pleased guilty to the highest charge he would have faced had he gone to trial. Clarke could be given youthful offender status at his sentencing.

Graves, who faces a prison term of at least seven years May 10, took $120 from the victim after threatening to shoot her, Sedita said.