US Pat. No. 9,933,221; to issue: April 3, 2018 US App. No. 15/236,391; filed August 12, 2016 Priority: US App. 62/204,054; filed August 12, 2015 Title: Gun Barrel Cooler Inventor(s): Fiedorowicz Assignee: Area 1 Sports, LLC Our Ref: 2103.002