ROYAL VULPIRA
Maximum-Draw High-Volume Variant
Description
The Royal Vulpira is the highest-output Thresher expansion, extending draw to a full 5.5" for maximum plunger volume at the lowest hardware cost. It retains the simple Z-Shell single-shot architecture while delivering the strongest performance available within the lightweight Thresher family.
Hardware Kit
| Part | McMaster # | Qty required |
|---|---|---|
| K26 (11") | 9637K26 | 1 |
| K25 (11") | 9637K25 | 1 |
| 10-32 threaded rod (3ft) | 98838A011 | 40 |
| 1.375" ID Plunger Tube (3ft) | 53945K21 | 9.75 |
Key Features
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Full 5.5" draw for maximum performance
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Most power output for lowest hardware cost
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Maintains Thresher’s lightweight, single-shot layout
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Compatible with Z-Shell caliber adapters