D2 Maker QD Spring Swap System – Quick-Change spring upgrade for ZWQ S400

Upgrade your ZWQ S400 with the D2 Maker Quick-Detach (QD) Spring Swap System, a modular performance upgrade designed for fast, tool-less spring changes in the field. This 3D-printable kit allows users to swap springs in just five simple steps, making tuning, maintenance, and configuration changes quicker and more convenient than ever.

Engineered for a precise fit and easy installation, this system is ideal for enthusiasts looking to enhance usability without permanent modification.

Key Features

• Tool-less Quick-Detach System
  Swap springs on the field without tools for rapid tuning and maintenance.
• Designed for ZWQ S400
  Purpose-built for reliable fitment and smooth operation.
• 3D Printable Upgrade Kit
  Compatible with common FDM printers and popular filament types.
• Fast Installation
  Simple assembly process using existing and minimal additional hardware.
• M-Lok slots
  M-Lok mounting slots for medium and long shrouds

 

Included in Purchase

• 1x D2 Maker QD Spring Swap System STL files
• 1x D2 Maker QD Spring Swap System hardware kit (Prints/Hardware kit versions only)

Hardware list (Shell Gen 1 ver.)

• 2x M5x50mm ball detent pins
• 2x M3x10mm grub screws (2 required)
• 1x M5x10mm thumbscrew

Hardware list (Shell Gen 2 ver.)

• 1x M5x50mm ball detent pins (or original muzzle retention chicago screw)
• 1x M3x10mm grub screws 
• 1x M5x10mm thumbscrew

Licensed Retailer: Ideal Foam Blaster (IFB) is an authorized retailer for D2maker products.