While most people want a lite trigger, I am going the other way.....I want a stiff NY 1 trigger, which in a nut shell is a trigger that requires more pressure to fire.
I currently have a Clock 19 Gen 4 and installed the NY 1 trigger spring and 3.5 lb connector and appreciate the feel and stiffness of the trigger.
So, my question is, what do I need to do to increase and stiffen the trigger pull on an M&P?
I grew up with DA/SA autos and revolvers, so I appreciate a stiff trigger on a striker fired weapon as opposed to a "lite hair trigger". I just don't feel comfortable CCW'ing with a striker fired pistol unless the trigger is stiff and deliberate.

Get the Massachusetts version. 10.5lb trigger.


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S&W does not sell drop-in trigger springs/parts in order to increase the trigger pull to comply with agency requirements.

S&W does sell, as the previous person pointed out, a Massachusetts-compliant M&P, which has a heavier trigger - 10.5 pounds.

If you sent your pistol in, S&W might change out the parts for you for the price of parts and labor. You will have to call and ask them.

The Massachusetts-compliant trigger, at 10.5 pounds, is a couple of pounds heavier than the 8 or 8.5 pound Glock pistol with the NY1 trigger. Just so you know, Glock made the NY1 trigger spring for the New York State Police.

The NY2, which is substantially heavier than the NY1 (perhaps 12 pounds), was made for NYPD.

Send me your address. I'll send you the parts from a Massachusetts compliant M&P.

I agree with you on wanting a heavier pre-travel in a carry gun. So I got a duty/carry spring from Apex. That got the pre-travel to my liking but the final pull to fire the gun was too heavy so I did most of the Burwell DIY stuff. You could also get the duty/carry kit from Apex, install just the spring and see how you like it. Then install the other parts if you feel the need.
S&W M&P Trigger Job
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What gun do you have?

What weight pull do you now have?

What pull weight do you want?

Is your trigger system already tuned or will it just be stock?

A heavier trigger return spring is probably all you need, but you need to choose which increase in weight.

While you should definitely carry and shoot what you are comfortable with, a heavier trigger may not be the best answer for increased safety or comfort.

A stock factory trigger set up in the 10#+ range is usually intended for untrained, untrustworthy individuals as a safety measure. It interferes with accuracy and speed--unless the trigger is well tuned.

Dumbing down a gun's capabilities to overcome a lack of training and proficiency is an unacceptable trade off IMO.

Heavy triggers are a government mandated liability reducer, not a performance enhancement. When there is no need mechanically for a heavy pull to cock the firing system, there is no need for a heavy trigger.

The factory 5.5-6.5# trigger pull weight produced on millions of striker fired guns is more than adequate as a safety. It is the operator who makes a tool safe or unsafe as long as the tool is within originally designed safety parameters.

Training and practice are the better solution for feeling safe with a factory trigger. It is a harder, more time consuming solution, but if the day comes when you actually have to use that gun to save your life, you won't likely regret not having a long, heavy trigger pull.