Walther PDP +4 Magazine Extension V2.0 - Full Size Frame by ZR Tactical Solutions

* NOT compatible with compact frames, F-series, or other magazine types.

• ZRTS +4 Extensions for Walther PDP Compact (15rd Mag Bodies)
• ZRTS +4 Extensions for Walther PDP Compact (18rd Mag Bodies)

* Terran Gear USA recommends using a small amount of Loctite 442 Blue to secure the included pin.

The Walther PDP +4 Magazine Extension V2.0 from ZR Tactical Solutions, available at Terran Gear USA, transforms your factory Walther PDP 18-round magazines into high-capacity powerhouses for full-size frames. Precision machined from durable **billet 6061 aluminum** with a tough anodized finish, this extension adds four reliable rounds while enhancing protection, grip, and reload speed for competition, training, or tactical use.

Designed exclusively for **Walther PDP full-size frames** using the OEM 18-round magazines, this V2.0 extension boosts total capacity to **22 rounds** when installed correctly. It includes an **extra power magazine spring** for consistent feeding and reliable function under high round counts. The extension is retained securely with a single **ZRTS Bolt Catch Pin** for quick, tool-minimal installation and removal. It works seamlessly with or without the OEM Walther magwell, and it fits within **USPSA gauge** requirements, making it ideal for production or carry optics divisions.

Installation is straightforward. Remove the factory plastic basepad, spring, and follower from your 18-round magazine. Transfer the follower to the included extra power spring, slide on the ZR Tactical extension, and secure it with the provided pin. Avoid reinstalling the original metal spring plate, as it limits capacity to less than 22 rounds. Note that on some PDP SF Match guns, due to slight variations in magwell machining, initial magazine insertion may feel tight and require break-in or minor modification for smooth operation.

Limited edition **purple** color is in stock now. Upgrade your PDP full-size setup with this robust, ergonomic magazine extension to enjoy fewer reloads, positive magazine seating, and enhanced performance without sacrificing reliability.

Key Features

• Billet 6061 aluminum construction with hard anodized finish for superior durability and corrosion resistance
• Adds +4 rounds to factory 18-round PDP magazines, achieving 22-round total capacity
• Includes extra power magazine spring for reliable feeding and high-round-count reliability
• Secured with one ZRTS Bolt Catch Pin for easy installation and secure retention
• Compatible with or without OEM Walther magwell on full-size PDP frames
• Fits USPSA gauge specifications for competition use
• Ergonomic design improves grip area for faster, more positive reloads
• Limited edition purple anodized finish available now

Compatibility and Installation Notes

This +4 extension is engineered specifically for Walther PDP full-size frame pistols paired with genuine 18-round factory magazines. It is not compatible with compact frames, F-series, or other magazine types. Always verify your magazine and frame before installation. On certain PDP SF Match models, tight tolerances in the magwell area may cause initial resistance during magazine insertion until broken in through use or minor adjustment.

Commonly Asked Questions

1. What capacity does this extension provide on a Walther PDP full-size?
   It adds 4 rounds to the factory 18-round magazine, resulting in a total of 22 rounds when installed properly with the included extra power spring.
2. Does this +4 extension work with the OEM Walther magwell?
   Yes, it is fully compatible with or without the factory Walther magwell on full-size PDP frames.
3. What is included with the ZR Tactical PDP +4 Magazine Extension V2.0?
   The package includes the billet aluminum extension, extra power magazine spring, and one ZRTS Bolt Catch Pin for retention.
4. Is this extension suitable for competition like USPSA?
   Yes, it fits within USPSA gauge limits and provides advantages in capacity and reload speed for production or carry optics divisions.
5. Why might magazine insertion feel tight on some PDP models?
   Due to minor variations in magwell machining on PDP SF Match guns, initial insertion may require significant force until the components break in or receive minor modification.