Is it possible to put a safety on an M&P 40c that came without one?

I do not want to get into a discussion of having a safety vs. not. There are safeties on all my other guns and I want to have consistency.

Thank you for your help!

S&W told me no on a 9MM....assume it's the same for the .40.
Ambi Safety

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Get off my lawn.....

-Thank you for your quick reply! That is my guess too.

If consistancy is important, why didn't you consistantly purchase a firearm with a thumb safety? I purchased my 40c with the safety, had to have the dealer order it, he had two in stock without.

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Romans 8:37

LOBONCA:

You may be able to obtain a sear block that will accept a thumb safety, but my understanding is that you can't.... You would need to cut out the grip a little for the levers, but that's not critical. Swapping sear blocks is pretty easy.

If your gun doesn't have a Hilary Lock, there's a chance that you have the right sear block now, but I wouldn't count on it. (The Hilary Lock requires about a quarter-inch hole through the sear block, behind the sear disconnect lever. Models with a thumb safety don't have that hole.)

You may also be able to find a sear block here that somebody want's to swap, but that's a "who knows" ....

I decided I wanted a thumb safety on my 40C because I do carry it, and I'm a 1911 guy. I picked up a 9C for my daughter with a thumb safety, and when she told me that she didn't want the gun (long story), I swapped grips - the 9C, 40C, and the 357C have identical grips (other than the thumb safety issues).

Other than a training compatibility issue, IMHO, the thumb safety on an M&P is a waste of time, and MUST be hacked a bit (unless you're lucky) to make sure it stays where you left it. A little soft, and a little too easy to move, otherwise.

I'm sure S&W offered the thing only because someplace in the big market (i.e., Law Enforcement) somebody asked for it....

Regards,

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Stu.

Magazine safety, yes. Thumb safety, I was told they use different frames, so no.

Beat Trash:

It's not a different frame between the thumb safety and non-thumb-safety versions. Different sear block, which is a hunk of steel on the top of the frame, towards the rear. The "standard" model, with the hole for the Hilary Lock, can't accept the very few parts needed to provide "locking" (hold the thing in "Safe" or "Fire" modes) for the thumb safety lever. A replacement sear block is only about $30, but my understanding is that you can't find the thumb safety version. (Can't remember the name of the outfit, but somebody with "Specialties" in their name may have 'em.)

(Swapping a sear block is very simple, but if you have to pull out the sear, use a plastic bag. It will go flying....)

The magazine safety, Hilary Lock, and the disassembly lever on the sear block, are all easily removed (or added if you can find the parts).

Regards,

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Stu.