Concept to Reality

Vulpira (Thresher ADD-ON)

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 2 x 12"+1 x 16" 1.375" ID Plunger Tube (3ft) 53945K21 6.5" Key Features Adds 1" of prime to the Thresher platform Increased plunger volume and output capability Lightweight add-on that retains Thresher’s simple mechanism

Vulpira (Thresher ADD-ON)
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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 2 x 12"+1 x 16"
1.375" ID Plunger Tube (3ft) 53945K21 6.5"

Key Features

  • Adds 1" of prime to the Thresher platform

  • Increased plunger volume and output capability

  • Lightweight add-on that retains Thresher’s simple mechanism