The 6-foot, 218-pounder improved his 40-yard dash to 4.39 seconds at his campus Pro Day workout. Amos ran the 40-yard dash in 4.56 seconds at the NFL scouting combine in February, the seventh-fastest time among safeties.
Amos could wind up lining up at safety or cornerback, in a pinch.
The former All-Big Ten Conference honorable-mention selection also bench pressed 225 pounds 21 times Friday after not doing that test at the combine.
Projected anywhere from the third round to the fifth round by draft analysts, Amos also played cornerback for the Nittany Lions. Amos played in the Senior Bowl all-star game.
At the NFL scouting combine, Amos has a 35.5-inch vertical leap and a 10-1 broad jump. His 4.03 three-cone drill ranked second among all safeties.
A former All-Metro first-team selection, Amos Jr. led Calvert Hall to a Maryland Interscholastic Athletic Association A Conference championship with 78 tackles, four interceptions and four forced fumbles.
Amos played for the Nittany Lions as a true freshman before emerging as a starting cornerback as a sophomore. He played cornerback and safety as a junior, when he had 50 tackles, 2.5 sacks and an interception. He lined up at safety last season and recorded 41 tackles and three interceptions. He finished with seven career interceptions and 38 consecutive starts.
Amos' father, Adrian Amos Sr., is a Baltimore City police officer who's been in the thick of things trying to restore order after the riots in Baltimore.