Glock 38 and 39 Review: .45 Auto Goes Compact By Nate M on September 5, 2016 in Compact, Glock, Pistol, Subcompact The .45 Auto is one of the most popular caliber’s that there are. Glock takes the. 45 Auto to another level with the .45 GAP, as we detail in our review of the Glock 38 and 39, Glock’s great compact and subcompact guns! Continue Reading 0