Video of the play quickly went viral on social media, with some fans comparing Adams' pass to that of an NFL quarterback, while others simply marveled at his pass and Morant's finish.
NBA analyst and podcaster Bill Simmons called it "one of the 10 most insane inbounds plays ever".
"It almost looks CGI'ed," Simmons added on Twitter.
It isn't the first time Adams has gone viral this season, with the Kiwi getting wide praise for his strength and temperament earlier this year after breaking up a fight during a game.
The Grizzlies ended up beating the Spurs 118-105, with Adams contributing four points, five assists and 14 rebounds.
But the star of the day was Morant, who shot a game-high 52 points, including a sensational poster dunk in the second quarter, along with seven rebounds and two assists.