gunpoint
v.— «One that I’ve heard several times, but never seen in print is the verb gunpoint, as in: “He came up to my car window, gunpointed me, and told me to get out and surrender my keys.” It’s economical, instantly comprehensible, and graphic—better than: “pointed a gun at me…”» —“Collins Word Exchange” by Vivien Horler Languagehat Jan. 17, 2005. (source: Double-Tongued Dictionary)