The 6-foot, 218-pound 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 likely boosted his stock with his faster time. Amos also played cornerback for the Nittany Lions.
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.
NFL personnel who attended the Penn State pro day included: Pittsburgh Steelers offensive coordinator Todd Haley and offensive line coach Mike Munchak along with representatives from the Ravens, Oakland Raiders, Kansas City Chiefs, New York Jets, Philadelphia Eagles, Buffalo Bills, St. Louis Rams, Tampa Bay Buccaneers, Cleveland Browns, Cincinnati Bengals, Miami Dolphins, New Orleans Saints and Jacksonville Jaguars, among others.
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.