In August 2017, Glock presented the "fifth generation '' or "Gen5 ''. The revisions centered on ergonomics and improving reliability. Many parts of fifth - generation Glock pistols can not be interchanged with those of the previous generations. The two fifth - generation models announced were the Glock 17 and Glock 19, chambered for the 9 × 19 mm Parabellum. Some conspicuous changes on the fifth - generation models are: nDLC (Diamond - Like Carbon) surface finish for barrel and slide, new barrel rifling and a deeper rtecessed barrle crown, omission of the finger grooves on the grip, a reintroduction of a cutout on the bottom front of the grip, ambidextrous slide stop lever, and a flared magazine well. The locking block pin located above the trigger pin that was introduced in the third - generation is omitted. Many internal parts were less conspicuous revised. "Gen 5 '' is rollmarked on the slide next to the model number to identify the fifth - generation pistols. The magazines were also revised for the fifth - generation models. The redesigned magazine floor plates feature a frontward protruding lip to offer grip for manual assisted extraction and the magazine follower became orange colored for easier visual identification.
when did the gen 5 glock come out
August 2017