AAC Bullet is a white-hulled, covered spring oat (Avena sativa L.) cultivar bred by the Ottawa Research and Development Center (ORDC), Agriculture and Agri-Food (AAFC). It was supported for registration by the Ontario Cereal Crops Committee (OCCC) in January 2011 and registered in Canada on 29 Oct. 2012 (CFIA registration no. 7251). In Ontario, AAC Bullet had significantly higher yield, better lodging resistance, and better resistance to crown rust but more days to heading than the control cultivars. From 2011 to 2015, AAC Bullet yielded 16% and 10% higher than trial means in southern and central Ontario, respectively, and has become one of the most popular oat cultivars in these regions.