Remix of Captain_Fantastic's Chamber Flag but with a slight curve to stay in the barrel more securely.
It is fairly universal. I have tested it on .22 pistols on up to .30 cal rifles without issue.
Printed with PETG so the material can flex a bit without breaking, but best not to let the action slam down on it or it will most likely break.
Flag_v2.STL | 170.9KB |