Glock GEN5 : We’ve raised the bar. Again. Aug 31, 2017 | What's on Gen5 We've raised the bar. Again. #Gen5 Posted by GLOCK on Wednesday, August 30, 2017 GLOCK, Inc. announced the launch of the long-awaited G19 Gen5 and G17 Gen5 pistols on August 30th, 2017. The Gen5 pistols feature over twenty design changes which distinguish them from their Gen4 predecessors.