Objective: This study evaluated the utility of a brief field-based intervention to reduce alcohol use and alcohol-related problems among men who have sex with men. Method: A randomized control trial was designed to test a brief alcohol intervention against an attention-placebo control intervention. Over a 13-week period in fall 2009, a sample (n = 152) of men who have sex with men was recruited at a local gay bar in San Diego, CA, and were randomized to a brief alcohol intervention or an attention-placebo control group. Sober bar patrons were recruited before bar entrance and asked to undergo a brief survey and give a breath alcohol sample at exit from the bar. Results: Breath alcohol concentrations at exit from the bar were not significantly different between those in the experimental alcohol feedback condition and those in the attention-placebo control condition. However, among participants in the experimental condition, those categorized as high risk for alcohol-related problems at entrance drank significantly less than planned as compared with participants categorized as low risk for alcohol-related problems. Conclusions: Brief, venue-based interventions may be appropriate for men who have sex with men who plan to drink at rates that would put them at higher risk of alcohol-related problems. Additional studies exploring the utility of brief intervention in risk settings are warranted.