Empty Chamber Flag 9mm 10mm
thingiverse
The red one is original, branded Springfield Armory. Got a couple of them and only one is left. Some ranges require this so I printed a few. Fits 9-10mm chambers. Should fit .38 - .40 as well. I am using it on Springfields XD and Glock 17. I am including Freecad drawings in case you want to adjust to your caliber. Printed with 20% infill to make the chamber arms more flexible. Sturdy enough and the slider hit does not cut it.
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