OBJECTIVE: Examine demographic factors associated with developing a plan for suicide with a firearm among a sample of military service members, veterans, and adult dependents. METHODS: Participants (N = 2690) were current military service members, Veterans, and adult dependents. A binary logistic regression was used to examine demographic variables associated with having developed a plan for suicide with a firearm. RESULT: A binary logistic regression indicates that men and those who identify as White had a significantly increased likelihood of having developed a plan for suicide with a firearm compared to another method. CONCLUSION: Findings represent a meaningful, incremental addition to the literature, by providing insight into who is most likely to develop suicide plans involving a firearm. Health care providers should provide information on secure firearm storage to those whose identities align with our results in an effort to reduce access to firearms during a time of crisis.