Description
The PDP Full-Size 5" is Walther's no-compromises take on a duty and range pistol. The 5-inch barrel gives you the longest sight radius in the PDP family, which translates to better accuracy at distance and cleaner splits on follow-up shots. Pair that with an 18+1 capacity and you have a full-size 9mm that genuinely has more to offer than most of its competition straight from the factory.
The Performance Duty Trigger is one of the biggest reasons people gravitate toward the PDP platform. It has a short, well-defined wall, a crisp break, and a reset that is noticeably shorter than what you get from most striker-fired pistols in this category. Out of the box, it runs right around 5.5 lbs and feels cleaner than triggers people spend extra money to upgrade on other guns. The SuperTerrain serrations on the slide are not just aesthetic either. They are raised, protruding serrations designed to give you a real bite on the slide whether you are running a red dot on top, wearing gloves, or working in wet conditions.
Walther built the PDP with red dot use in mind from day one. The optics-ready slide sits lower than many competitors, which means your red dot mounts closer to the bore line for a more natural sight picture. Walther will send you an optic adapter plate free of charge through their website, covering popular footprints like the Trijicon RMR, Holosun 507C, and Leupold DeltaPoint Pro. The standard 3-dot iron sights stay usable when you have an optic mounted, and the rear sight dovetail is left intact so your irons maintain their zero independently.
The frame comes with interchangeable backstraps in three sizes so you can dial in the grip fit to your hand. The grip texture uses Walther's tetrahedron Performance Duty pattern, which provides excellent traction without being abrasive against skin or clothing. A full-length Picatinny rail up front takes any standard pistol light. The magazine release is reversible for left-handed use, and the ambidextrous slide stop makes the controls genuinely usable from either side.
This pistol ships with two 18-round magazines, backstraps, a magazine loader, and an optic cover plate. It is well suited for duty, home defense, competition, and range work, and the aftermarket support for the PDP platform has grown significantly since its launch.
Key Specifications
- Manufacturer: Walther Arms
- Model: PDP Full-Size
- MPN: 2858410
- UPC: 723364227134
- Caliber: 9mm Luger
- Action: Striker-Fired Semi-Automatic
- Barrel Length: 5"
- Capacity: 18+1
- Frame Material: Polymer
- Slide Material: Steel, Optic-Ready / SuperTerrain Serrated
- Sights: 3-Dot White (Optic Ready)
- Safety: Manual Thumb Safety + 3 Auto Safeties
- Accessory Rail: MIL-STD 1913 Picatinny
- Trigger Pull: Approx. 5.5 lbs (Performance Duty Trigger)
- Number of Magazines: 2
- Color: Black
What’s Included
- Walther PDP Full-Size 9mm pistol
- Two 18-round magazines
- Interchangeable backstraps (S, M, L)
- Magazine loader
- Optic slide cover plate
- Optic adapter plate voucher (redeemable through Walther Arms)
Frequently Asked Questions
Does the Walther PDP Full-Size 5" come ready to mount a red dot?
Yes, the slide is pre-cut for a red dot optic right out of the box. It ships with a cover plate installed, and Walther will provide one free optic adapter plate through their website that fits your choice of optic. Popular supported footprints include the Trijicon RMR, Holosun 507C, and Leupold DeltaPoint Pro, among others.
How does the PDP trigger compare to other striker-fired pistols?
The Performance Duty Trigger is widely considered one of the better factory striker triggers available. It has a short takeup, a well-defined break point, and a short reset that makes fast follow-up shots easier to manage. Pull weight runs around 5.5 lbs on most examples, which is appropriate for a duty and defensive pistol.
What is the difference between the Walther PDP 5" and the 4.5" model?
The 5-inch barrel gives you a slightly longer sight radius, which helps with accuracy at distance and makes mounting a red dot even more effective. Both models share the same full-size grip and 18+1 capacity. The 5-inch is the longest configuration in the standard PDP Full-Size lineup and is particularly popular for range use and competition.
Are the backstraps on the PDP Full-Size interchangeable?
Yes, the PDP ships with small, medium, and large backstraps so you can adjust the grip to fit your hand size. Swapping them out is straightforward and does not require any tools. This is one of the features that makes the PDP a good fit for a wider range of hand sizes.
What is Walther's stepped chamber and why does it matter?
The stepped chamber is tighter near the leade of the barrel and more open at the feed end. Walther designed it to improve both accuracy and velocity while also reducing fouling over a high round count. In practical terms, it means the gun tends to run cleaner over longer range sessions and can wring a bit more performance out of most 9mm loads.
Does the Walther PDP Full-Size work with a weapon light?
Yes, the frame has a full-length MIL-STD 1913 Picatinny rail that accepts standard pistol lights from brands like Streamlight, SureFire, and Olight. The rail runs the full length of the dust cover, which gives you solid mounting options for most full-size pistol lights.




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