The PDP Compact 4" is a duty-grade, striker-fired pistol built around Walther’s ergonomically contoured polymer frame and a 4.0 in barrel optimized for general-purpose carry and service applications. The Dynamic Performance Trigger provides a refined break and shortened reset while maintaining the PDP’s internal safety architecture.

This example features an upgraded Practical Performance stainless steel captured guide rod, supplied with a 15 lb ISMI flat-wire recoil spring installed and an additional 13 lb ISMI spring for tuning slide behavior. The optics-ready slide retains Walther’s modular interface for direct-mounting compatible mini reflex optics. Controls include an ambidextrous slide stop and a reversible magazine catch.

Specifications

• Manufacturer: Walther

• Model: PDP Compact 4"

• Caliber: 9×19mm

• Barrel Length: 4.0 in

• Action: Striker-fired

• Frame: Polymer, black

• Slide: Steel slide, black, optics-ready

• Trigger: Dynamic Performance Trigger

• Optic Cut: PDP 2.0 Optics cut

• Controls: Reversible magazine catch, ambidextrous slide stop

• Guide Rod: Practical Performance stainless captured rod with 15 lb ISMI flat-wire spring (13 lb spring included). Original guide rod assembly included.

• Magazines: Two 15-round magazines

• Weight (Unloaded): ~21.4 oz

• Overall Length: ~7.5 in