The sophomore linebacker from Lebanon, Ohio, showed what he can do in East Lansing and earned an offer from Buffalo on Monday afternoon.
"It feels awesome," Glackin said. "It's just unreal, like a dream come true. The first one is the hardest one to get."
The 6-foot-2, 208-pound linebacker said he greatly enjoyed the camp at MSU on Sunday, leaving saying he liked the school and the experience a lot. He also was happy with his performance.
"I thought I performed well and Michigan State had the best competition there, so I was thankful to get a look against them and do drills against them to see how I stack up against the best," he said.
He showed so well, in fact, that Spartans defensive backs coach Harlon Barnett spent time talking with him afterward, praising his work.
"It seemed like all the coaches there liked me," Glackin said. "I am still young as a sophomore, but I heard a bunch of good things from them and they were all very nice to me."
Glackin and his father received a tour of campus during their time Sunday, which was their first visit to East Lansing.
"The campus was unreal," he said. "It wasn't anything that I expected. I just walked up and I was just amazed at how much it all felt like Cincinnati. It felt like I belonged there.
"The facilities were first class and the stadium was unreal. Everything they do, they seem to do it right."
Now, with his first offer in hand, Glackin will hit a few more camps hoping to see his list grow.
"I have Cincinnati coming up here this Friday," he said. "I have Indiana I believe the 14th and then I have OSU the 19th."
The interest from hometown school, Cincinnati, has been clear and he hopes that could be the second offer.
"I hear that they are really interested," he said. "I have had a chance to get to talk to Coach Tubberville when I've visited campus there. …
"It would be unbelievable. I am still stuck on this first offer from Buffalo. To get two offers in one week after not having any would be crazy."