Two grizzled mixed martial arts veterans met to cap off BKFC’s event in Billings, Mont., on Saturday evening. Former UFC competitors Joe Riggs and Melvin Guillard took off the gloves to bare knuckle box at 185 pounds in the main event of Saturday’s BKFC Fight Night Montana. The event took place at the MetraPark Arena in Billings, Mont., and aired on the FITE and the BKTV app. The main event didn’t last very long. Guillard got the action started by offering a few punches, but Riggs decided to just defend the first few strikes instead of returning fire. Perhaps just getting a read on his opponent in the opening seconds, Riggs let the action come to him, until he decided it was time to strike