Inclusion Criteria:  Veterans 18 years or older Diagnosed with PTSD, established via the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) Report a score of 12 on the 5-item Dimensions of Anger Reactions Scale Can read at least 6th grade level material Report a score of 1-3 (indicating ideation without intent) on the Columbia-Suicide Severity Rating Scale (C-SSRS) Have attended a mental health appointment within the past month, with another scheduled in the following month (i.e., be engaged in treatment with a mental health provider)  Exclusion Criteria:  Diagnosed with bipolar or psychotic disorder. Current substance use disorder. Current imminent suicide risk or homicidal ideation requiring immediate intervention.