Under pressure to deliver for a team seeking victory to square the series, the captain smashed 48 off just 27 deliveries with five fours and three sixes, dominating a 53-run seventh-wicket partnership with former skipper Darren Sammy, who belted his way to an unbeaten 29 off 18 balls.
Pakistan, assured of maintaining their unbeaten run in ODI series in the Caribbean since 1988, were in control through most of the innings via tight, disciplined bowling, pacers Junaid Khan (3 for 48) and Mohammad Irfan (2 for 34) leading the effort until Bravo cut loose.
Marlon Samuels (45) and Johnson Charles (43) held the home side's innings together, although at a considerably slower pace, before the arrival of the cavalier captain. Both fought to dominate the admirable Pakistan bowling effort and perished when seeking to press on the accelerator.
In stark contrast, the usually destructive Chris Gayle was again a mere shadow of his plundering best, labouring to 21 off 34 balls batting for the second consecutive match in the unusual position of number in the order. His replacement at the top, Devon Smith, failed yet again, falling victim to an aggressive Junaid, who followed up with the wicket of Darren Bravo to have the West Indies faltering in the early exchanges.