Called up by the Angels on Friday, Carpenter made his Major League debut for the team later that night, tossing a scoreless ninth inning against the Yankees.
"It really is a dream come true," Carpenter said. "I really want to show in each outing why I deserve to stay here."
In two appearances this season, both against the Yankees, Carpenter has tossed a a total of three innings, giving up two runs on two hits, while walking two and striking out one.
More than anything, the organization likes the makeup of the 24-year-old right-hander.
"In the few outings he's had here, he hasn't been intimidated," Angels manager Mike Scioscia said. "He has some deception to his delivery and has a good sinker. That should play well for a guy slotted somewhere in the middle of the bullpen right now.
"He'll get a chance to contribute. That's for sure."