The Walther PDP Full Size is a semi-automatic pistol chambered in 9mm with a 4.5-inch polygonal rifling barrel and an 18+1 round capacity. It has a gray polymer frame with a stainless steel slide and is optic ready with adjustable sights. The slide has serrations and the pistol accepts standard magazines. 
 

Key Specifications 

• Brand: Walther Arms 
• Model: PDP Full Size 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 18+1 rounds 
• Barrel Length: 4.5" 
• Color/Finish: Gray Polymer 
   

Detailed Features 

• 4.5-inch polygonal rifling barrel 
• Optic ready slide with adjustable sights 
• Serrated stainless steel slide 
• 18+1 round capacity 
• Gray polymer frame construction

Owners of the Walther PDP Full Size in 9mm consistently mention the trigger as a standout characteristic. The short reset and clean break get praise from those who shoot it alongside other striker-fired options. The optic-ready cut is a practical addition that most buyers intend to use.

The PDP's ergonomics are frequently described as comfortable, with the grip texture getting positive attention for control without being abrasive. Some shooters note the grip angle differs from what they're used to, which takes an adjustment period. The 4.5-inch barrel version is considered the sweet spot for full-size carry or range use.

Value opinions vary. Those coming from premium competitors find the PDP competitive. A segment of buyers raises questions about long-term support for the optic footprint pattern, which is a fair concern for a platform still maturing in the aftermarket.