Have heard that story before:
https://www.milsurps.com/showthread.php?t=30342
Make sure you can see that the Plunger is sitting correctly on the flat of the **Extractor**.
Often see these rotated around...... just waiting to fly off.
I bring a parts pouch with me when at the range. Have a bolt tool, extra bolt internals.. among other things, to include a extra complete bolt.
See picture:
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