The Gunslinger Born was first published on February 7, 2007 with the last issue being published on August 1, 2007; there are seven issues. The hardback version was published November 7, 2007 containing the entire comic collection.
The story opens with Roland and his ka-tet training with their eagles under the guidance of Cort. After training Roland sees Marten, who calls him over to show him his mother unclothed in his bed. Roland angrily goes to Cort and challenges him for his father's guns. Cort agrees and lets Roland go prepare, with Roland returning with David the hawk as his chosen weapon; he wins the duel, becoming a gunslinger.
The rest of the story in The Gunslinger Born is basically a retelling of the events in The Gunslinger and Wizard and Glass.
See also Chapter Summaries: