The discerning gentleman’s zip gun Posted April 29, 2015 in Guns & Gear, Pistols by ImproGuns with 12 CommentsTags: DIY, homemade, homemade guns, homemade pistol, improvised firearms, single shot pistol, zip gun, zip guns Here’s a humorously tasteful take on a crude Vietcong-esque single-shot pistol design. All it’s missing is an intricate engraving depicting the last of the buffalo.