Firearms are the leading cause of death of U.S. children and young adults. Although physicians believe counseling on firearm injury prevention is within their scope of practice, few routinely counsel patients on firearm injury prevention and most have not received formal education on how to do so. Most medical schools do not teach firearm injury prevention curriculum. To evaluate medical students’ perceived knowledge, confidence, and intention to engage in clinical and policy advocacy approaches to firearm injury prevention following a two-hour, case-based firearm injury prevention curriculum.