Saw a M&P 9C recently with the frame cutout for the manual safety but NO safety switch. Was this a modified gun or are all frames notched for a safety?
Thanks

Not all guns are notched for a safety.

They can be modified though.

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Gotta M&P 45 with no saftey....Its notched but has a plastic plug in it from factory...is this what your talking about or is there a hole in the frame?

Some M&Ps have this plug and some do not.

This is an M&P 40:


This is an M&P 45:


It appears that only the 45 has the plug, but I haven't looked at them all.

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