Per the link: Sheriff Approves Expanded On and Off Duty Weapons list at , the 9mm M&P Shield is approved for off duty, backup, and plainclothes, but the listing reads, "MUST ATTEND THE OPTIONAL OFF-DUTY CLASS FOR THE SHIELD REGARDLESS OF SAFETY CONFIGURATION" (In caps on their page).
Aside from the fact that "Must attend" and "Optional" is confusing, why is that included for this gun and not for others of a similar size?
Aside from the fact that "Must attend" and "Optional" is confusing, why is that included for this gun and not for others of a similar size?

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