AR-15 5.56/223/300BO Chamber Flag
Description
This is a redesign of this chamber flag: https://www.thingiverse.com/thing:1694506 It had a tendency to break at the base (printed horizontally with 4-5 walls, 50-60% infill) if you didn't ride the bolt closed with the charging handle. It may survive one or two slams from the bolt, but inevitably the edge of the ejection port would split it. You also had to scale it down and/or sanding to fit into the chamber. I shortened the distance between the octagonal "handle" and the stem slightly so that it comes to rest on one of the faces of the handle. In addition, I added a small protrusion on the back end that rests on the bolt face, combined it gives a much larger contact area and spreads the load across an overall larger surface and away from any potential weak spots. The stem has also been properly sized so that it slides in and out of the chamber effortlessly. Pictured print was my initial design, went back and eliminated the gap between the stem and handle since it isn't required with the way the part works now and eliminates a potential weak spot.
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