"I was shaking with excitement," Hunter told the Vikings' official website about what he was feeling before signing the extension. "I was like, 'Is this real?'
"My body was just doing it, and I didn't even realize I was doing it coming in here. I feel like it's an important day for my family and I, and the team. I'm really excited about it."
Since joining the Vikings in 2015 as a third-round pick out of LSU, the 6-foot-5, 252-pound Hunter has developed into a reliable defender off the edge.
Over the past three seasons, Hunter has totaled 147 tackles (91 solo tackles) and 25.5 sacks to go along with 36 tackles for a loss, 125 quarterback hurries, three forced fumbles and two fumble recoveries.
Hunter and Everson Griffen have combined for 57 sacks since 2015, a total that ranks as the second-most by any pair of teammates during that span.