Firearms are the leading cause of death among adolescent and young adults (AYAs). The impact of firearm violence extends far beyond fatalities, with significant physical and mental health effects among individuals, families, and communities. An entire ecosystem of solutions to reduce morbidity and mortality is urgently needed. The study by Carter and colleagues provides an important contribution by evaluating the impact of a novel intervention focused on decreasing risky firearm behaviors (RFBs) among youth and young adults aged 16 to 30 years. The intervention, IntERact, combines virtual counseling sessions led by a community health worker with tailored smartphone application (app)–based digital support, compared to enhanced usual care (EUC). Any patient presenting to the emergency department (ED) was eligible for screening; those reporting past 3-month firearm carriage and owning a smartphone were eligible to participate and were randomized after taking a 25-minute baseline survey. Primary outcomes included changes in RFBs. Analyses showed robust treatment effects in the IntERact group, including significant reductions in RFBs at 6 months and in experiencing physical violence at 3 months compared to EUC. The EUC group also demonstrated a decrease in RFBs at 3 months but not 6 months. Exploratory outcomes showed promise regarding violent injury, delinquency, anxiety, depression, and substance use.