Using market response to their earlier P88 and P99 semi-automatic pistols, Walther engineers designed a successor from the existing foundation, integrating an improved trigger function to a revised grip, frame and slide combination. The result is the Walther "PPQ" which, if it falls within one's budget, makes for a solid and reliable polymer sidearm worthy of the Walther name.
The backstrap is replaceable (small, medium and large sizes offered) to suit user comfort and ribbing at the front and rear sides of the slide give the shooter options when racking. Low-profile sights (3-dot polymer, rear adjustable for windage) are appropriately fitted front and aft over the slide with metal self-illuminated sights being optional. The grip is stout and well-contoured for a firm hold. The various controls common to semi-automatics are found where expected along the sides of the gun - doubled on both sides of the frame for ambidextrous operation. A section of Picatinny rail under the muzzle allows for the fitting of tactical flashlights or aimers. Three safeties are fitted - two drop and a firing pin block to allow for safer ready-carry.
The new product addition has been praised for its reworked trigger feel (5.6lb pull, .4" travel and .1" trigger reset). Ergonomics are also a plus as is reliability and shooters have commented positively on the gun's weight and its shooting action, the latter being described as "fun". The PPQ is primarily offered in both 9mm and .40S&W forms resulting in magazine capacities of 11 and 5 rounds, respectively.
Several variants have emerged since the product's inception - the PPQ "Tactical Navy" is something of a maritime model with revised firing mechanism. The PPQ "Tactical Navy SD" follows suit but has a longer barrel with threaded muzzle. The PPQ "First Edition" is the Tactical Navy SD for the U.S. market. The PPQ Simulation FX and Red Gun models are training models with various differences.
The PPQ M2 appeared in 2013 and shifts the design to a button-style magazine release as opposed to the more European-minded trigger ring "paddles". The PPQ M2 5" Sport, appearing in 2014, has been given a 5" barrel length and appropriate slide change for competition shooting.
The Taiwanese National Police Agency is a known active operator of the Walther PPQ M2 series.