The Walther PDP has a threaded barrel, and a compensator for it addresses the one variable that a well-set-up striker-fired pistol still leaves to physics: what happens to the muzzle after the shot. Gas redirected upward works against the rotation that lifts the front of the gun — which means the sights return faster between shots, and split times on fast strings tighten as a direct result. The PDP's competition ergonomics give it a strong starting point; the compensator takes muzzle control further.
Thread specifications are listed on the individual product page. Always confirm before ordering.