I'll call jp today and see if they have any insight.
Grendel not loading second round
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Jp had my upper for a long time, it kinda got pushed to the back burner by accident. They replaced the barrel, and for my inconvenience of waiting a couple months, they threw in a silent capture spring. They said that there was a burr in the gas hole and one in the chamber. I'll go shoot it this weekend and test the SCS
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