GLOCK 26 Gen 4 for sale best 9 mm Luger is one of the most sought-after concealed carry pistols. The magazine capacity of 10 rounds is standard and the highly accurate firing characteristics explain why the GLOCK 26 or GLOCK Gen 4 is the mainstay backup option among security personnel and agencies worldwide. Of course, the GLOCK 26 Gen 4 comes with a reversible magazine catch, interchangeable back straps, and improved frame texturing for solid control despite the pistol’s size.