Colvin made 1 of 2 free throws with 17.9 seconds left for a 48-45 lead. Pine Bluff's Thaddeus Handley Jr. converted a three-point play with 11.6 left for 48-all, but was called for a blocking foul on Colvin's drive to the basket.
Colvin missed the front end of a one-and-one with 3.2 seconds left, but the rebound went of Pine Bluff, setting up Colvin's heroics.
Alabama A&M won its third consecutive game after losing eight straight. Arkansas Pine Bluff dropped its fifth in a row.