Caliburn/Talon Claw Prophecy spring drop-in kit

### Introduction

This is a drop-in kit to allow you to use Worker Prophecy-R "power" type springs in the [Caliburn blaster](/thing:2376150) from CaptainSlug.

Tested and confirmed working so far:
* Worker 25N spring (W0233)
* Worker 28N spring (W0323)
* BlasterTECH BT27-Plus spring

I personally recommend using the 28N spring -- it's the perfect length for the Caliburn, and delivers good performance while not being overly difficult to prime.

This kit is designed for the standard Ca