• Mossberg Owners is in the process of upgrading the software. Please bear with us while we transition to the new look and new upgraded software.

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  1. 6

    New JM PRO Owner "Disappointment"

    Got it back from Mossberg Factory. Work order says the M930 Shell Stop ASM was replaced. Also says they shot 10 rounds of 2 3/4" Field loads and 3 rounds of 3" field loads Steel. I took it out and put some slugs and buck shot (10 rounds at local indoor range) through it as functional check...
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