Japan's Genki Hayashi, Takumi Shinsha, Sho Saito and Hokuto Fujinaga, who had a 120-pin lead over Chinese Taipei A Team, got off the second block well with 836 but could not extend their lead further.
Chinese Taipei A Team's Tseng Hung En, Wu Ming De, Xue Zhi Shan and Hung Bo Han also returned a good game of 835 to remain in second. Hong Kong A Team of Ivan Tse, Jacky Lo, Keith Mark and Alex Yu knocked down 807 to stay in third.
The Japanese quartet added 796 in their fifth game and 798 in their sixth and final game to seal victory and to win their second gold medal of the championships with 4959. Chinese Taipei A also remained unchallenged ending with 728 and 802 to win the silver medal with 4779.
Singapore A Team of Eugene Yeo, Gerald Teng, Brandon Ong and Xavier Teo fired 771 and 839 to snatch the bronze medal with 4650. Hong Kong, who was third before the final game, managed only 719 to miss the podium in fourth position with 4616.