First announced in November 2017, the new Walther PPQ M2 Q4 semi-automatic polymer-frame pistol was showcased at the 2018 SHOT Show in Las Vegas. The latest entry in Walther's family of competition and tactical pistols, the Walther PPQ M2 Q4 is a "service-length" variant of the Q5 – one of the top selling handguns of 2017 – featuring a four-inch barrel that will make it much more appealing not just to sport and competition shooters, but to public safety and private security professionals as well.

Just like the Q5 model, the new Walther PPQ M2 Q4 sports a set of Italian-made sights – an adjustable LPA rear sight and a red fiber-optic LPA front sight. A metal plate can be removed from the rear top portion of the slide to allow the use of red-dot sights through a set of adapter plates (the plates for Docter, Leupold and Trijicon sights are not included, but they can be ordered as accessories).

The Walther PPQ M2 Q4 is a striker-fired, pre-cocked single-action design weighing in at barely 885 grams and offering a 25 N (5.5 lbs) trigger pull as well as a set of three automatic safeties.

It comes in a Q5 carrying case with a short 15-round magazine plus two 17-round magazines. Caliber is 9mm Luger.

Also available is the Walther PPQ M2 Q4 TAC pistol – basically the same handgun, but equipped with a 4.6" barrel that's threaded at the muzzle for silencers, sound suppressors, muzzle brakes, or other muzzle devices. The Walther PPQ M2 Q4 TAC pistol comes factory-issued with a thread protector.