The Walther PDP Full Size is a striker-fired semi-automatic pistol chambered in 9mm Luger (9x19 Para). It has an 18+1 round capacity, 4.5-inch barrel, polymer frame, steel slide, and ships in black with two magazines. 
 
Key Specifications 

• Brand: Walther Arms 
• Model Name: PDP Full Size 
• Caliber: 9mm Luger (9x19 Para) 
• Action Type: Striker Fire 
• Capacity: 18+1 rounds 
• Barrel Length: 4.5 inches 
• Overall Length: 8 inches 
• Weight: 22.3 oz (1.58 lbs) 
• Finish: Black 
• Frame Material: Polymer 
• Slide Material: Steel 
• Magazines Included: 2 
   
  Detailed Features 
   

Ergonomic Design 

The Performance Duty Texture grip holds across wet and dry conditions. The texture keeps the pistol in place during sustained range sessions without cutting into skin. 
 

Advanced Activation System 

The Performance Duty Trigger has a pull weight of approximately 5.6 lbs and 0.28 inches of travel, which allows faster follow-up shots while keeping muzzle movement minimal. 
 

Optics Ready 

The slide has an optic cut compatible with modern mounting systems. Adjustable white dot irons are included, and users can configure the setup for either iron sights or an optic. 
 

Enhanced Capacity 

The 18+1 magazine capacity is above average for a full-size striker-fired pistol, while overall dimensions stay manageable for range use and home defense.

The Walther PDP Full Size 9mm Optic Ready Striker-Fire Pistol draws a mostly positive response with some recurring criticisms.

On the positive side, the ergonomic grip gets consistent praise, particularly for how it handles during longer sessions. The trigger is a regular highlight: smooth pull, short reset, and a feel that shooters say improves their split times. The optic-ready platform appeals to a wide range of buyers, and recoil management is described as comfortable for both new and experienced shooters. Build materials are generally considered durable.

The main complaints are size and price. The full-size frame is too large for daily carry according to several users, who opt for a compact variant instead. Some shooters find the price harder to justify compared to competitors like Glock or Sig at a similar price point. There is also a noted learning curve for shooters new to red dot optics. The PDP vs. other striker-fired pistols debate is a common thread in community discussions, with outcomes depending heavily on individual grip preference and intended use.