VULPIRA
1" Extended Draw Add-On
Description
The Vulpira Thresher Add-On increases the draw length by 1", similar to the Mokarran expansion but optimized for the lightweight Thresher platform. This add-on improves plunger volume and output while retaining the simple Z-Shell single-shot mechanism and low hardware requirements. It is designed for builders seeking higher performance than a Thesher.
Hardware Kit
| Part | McMaster # | Qty required |
|---|---|---|
| K26 (11") (8.25" piece) | 9637K26 | 1.75 |
| K25 (11") (8.25" piece) | 9637K25 | 1.75 |
| 10-32 threaded rod (3ft) | 98838A011 | 43.5 |
| 1.375" ID Plunger Tube (3ft) | 53945K21 | 6.5 |
Key Features
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Adds 1" of prime to the Thresher platform
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Increased plunger volume and output capability
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Lightweight add-on that retains Thresher’s simple mechanism