In July 2015, McKissic joined
Victoria Libertas Pesaro of the Italian
Serie A. On December 7, 2015, McKissic signed with the
Changwon LG Sakers of the South Korean
KBL. In his season in South Korea, he averaged 16.1 points per game in the KBL. In June 2016, McKissic signed with
Muratbey Uşak Sportif in Turkey. On June 29, 2017, McKissic signed a one-year deal with
Gran Canaria. On December 6, 2017, he parted ways with Gran Canaria after averaging 5.5 points per game in the
Liga ACB, due to disciplinary reasons after alleging a confrontation with coach
Luis Casimiro. Six days later, he signed with Russian club
Avtodor Saratov for the rest of the 2017–18 season. On July 5, 2019, McKissic signed a one-year contract with
Beşiktaş Sompo Japan of the Turkish
Basketball Super League (BSL). On February 1, 2020, McKissic opted out of his contract with the club. He averaged 16.6 points per game in the
Champions League, along with 17.6 points in the BSL. On February 10, 2020, McKissic signed with
Olympiacos Piraeus of the
EuroLeague. On February 7, 2021, he signed a two-year extension with the team. On April 11, 2023, McKissic agreed on another two-year contract extension through 2025. On July 2, 2025, McKissic signed for one final season with the Reds through 2026. ==National team career==