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Stagecoach - Chance Edition

Some modifications I made to the Stagecoach for my personal use
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updated December 8, 2025

Description

PDF

See "Differences of the remix compared to the original" section.

Important: you will need to modify your aluminum bar for this remix. You only need a drill and hand saw to do this. The modified bar is in the .step file, and the change is as follows: 

  1. Find the end with the NOT-tapped holes

  2. Mark the spot 16mm forward of the existing rearmost hole (that's center-to-center distance, not edge-to-edge)

  3. Drill it out to the same diameter (the CAD lists it as 0.2 inch)

  4. Cut the bar approximately 2.5-3mm behind that hole

You'll also need two 22/27mm o-rings. They can be had on amazon. Here's one link, but I'm sure there are others as well: https://www.amazon.com/dp/B07FR612J7

I don't have a ton of bandwidth to field "is it compatible with X?" questions or how-to-build questions. Follow the original Stagecoach guide and you'll be close enough to figure out the rest on your own. I'm also not uploading STLs for this one because it's just too many. 

Tags



Model origin

The author remixed this model.

Differences of the remix compared to the original

Major Changes (that I can remember):

  • Took 32mm off the front and the stock - You'll need to modify your C4 aluminum bar for this
  • Turnaround now takes Zinc-PT-diameter O-rings (22mm ID, 27mm OD) to allow for sealing against rear-loading mega shells
  • Reshaped things visually
  • Now has an ejection selector on top - this takes two springs
  • Priming arm has been rearranged slightly to allow for printing on the A1 mini
  • Frontmost lower engravings are now a separate glue-in panel to allow for cleaner AMS work
  • Made the trigger guard smooth
  • Tightened tolerances throughout (especially in the stock and grip)

License