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 (+Thresher Hardware) |
|---|---|---|
| K26 (11") | 9637K26 | 1 |
| K25 (11") | 9637K25 | 1 |
| 10-32 threaded rod (3ft) | 98838A011 | 2 x 12" + 1 x 16" |
| 1.375" ID Plunger Tube (3ft) | 53945K21 | 1 x 9.75" |
Key Features
-
Full 5.5" draw for maximum performance
-
Most power output for lowest hardware cost
-
Maintains Thresher’s lightweight, single-shot layout
-
Compatible with Z-Shell caliber adapters