17, 19, 20, 21, 21SF, 22, 23, 26, 27, 29, 30, 30S, 31, 32, 33, 36, 37, 38, 39.
Also approved are variants with original Glock barrels which are longer than standard (e.g. 17A, 17DK), as well as variants with "Tactical", "Mariner" or similar OFM engravings on the slide, provided the barrel length does not exceed 127mm, and provided all other aspects of these variants fully comply with all other Production Division rules.
Also approved are Gen4 and SF versions of approved models.
Not Approved: 18, 24, 25, 28, 34, 35, 41, 42, Pro, L and C models
Согласно этой выборки Глок 17 ГЕН 4 попадает в серийный класс, а вот Глок 34 уже только в стандарт!