Last Fall, at the same shooting event where I worked with the Walther PPQ M2 Q4 TAC 9 mm Pistol ... The polymer 3-Dot sight system is low profile but easy to use. Like it's larger compatriots ...

Like the Walther Q5 Match series, the Q4's PPQ lineage is clearly evident in ... the back end of the extractor dips into its slide, exposing a red dot, which provides both a tactile and visible ...