M&P M2.0 Sear and Trigger Bar changes

[tul9033]

I just finished detail stripping the M2.0 and doing my standard tune up on it. I should of taken pictures while I had everything apart. Here's the best I can do assembled.
#1 is the nub that engages the striker block. However, now it also engages the sear. The sear is now 2 parts. The 2nd part is #2. It is held in place by the sear pin and the lobe that used to be engaged by the trigger bar loop. It's like a C clip with a hood. The sears *appear* to be the same 1.0/2.0, but the lobe on the 2.0 now only appears to serve as an anchor point for the new sear part which is the actual sear engagement point.
It will be interesting to see what APEX does with the 2.0. There's nothing to be done with the lobe now, it plays much less of a role in trigger feel. The back of the sear where the striker is held could be improved for trigger weight, but the break is pretty darn crisp. Even after cleaning mine up it still breaks at 5.4 lbs, a bit on the heavy side for my liking.
The striker block definitely needs cleaning up, felt and sounded like gravel. I reshaped and cleaned mine up and it as good as the APEX part now. However, it appears to be made of a much softer metal than before, maybe even aluminum. I intended to put a magnet on it while I had it out, but never came back to it. So an APEX USB would still be a worthy upgrade.

The 2nd picture below is with the trigger pulled so sear engagement can be seen.





This picture came from the beararms blog and shows the "C clip" in the sear block better.

[matt7184]

Thank you for the pictures. I noticed the same thing on my 2.0. I wonder how much help the Apex sear would be now for the trigger characteristics.

[Mrgunsngear]

I just finished detail stripping the M2.0 and doing my standard tune up on it. I should of taken pictures while I had everything apart. Here's the best I can do assembled.
#1 is the nub that engages the striker block. However, now it also engages the sear. The sear is now 2 parts. The 2nd part is #2. It is held in place by the sear pin and the lobe that used to be engaged by the trigger bar loop. It's like a C clip with a hood. The sears *appear* to be the same 1.0/2.0, but the lobe on the 2.0 now only appears to serve as an anchor point for the new sear part which is the actual sear engagement point.
It will be interesting to see what APEX does with the 2.0. There's nothing to be done with the lobe now, it plays much less of a role in trigger feel. The back of the sear where the striker is held could be improved for trigger weight, but the break is pretty darn crisp. Even after cleaning mine up it still breaks at 5.4 lbs, a bit on the heavy side for my liking.
The striker block definitely needs cleaning up, felt and sounded like gravel. I reshaped and cleaned mine up and it as good as the APEX part now. However, it appears to be made of a much softer metal than before, maybe even aluminum. I intended to put a magnet on it while I had it out, but never came back to it. So an APEX USB would still be a worthy upgrade.

The 2nd picture below is with the trigger pulled so sear engagement can be seen.





This picture came from the beararms blog and shows the "C clip" in the sear block better.

My newest "original" M&P was the same way. Haven't had an issue with it yet but I noticed it as well. Thanks for the report.

[Kenobi]

I wonder if it would be possible to fit the new trigger assembly into the old M&Ps. I assume it would take a new trigger, trigger bar, the new sear assembly, and a new rear block (assuming the new block will fit the old frame). One I cracked open didn't look like they changed much internally on the slide except the slide stop. If they didn't change the external dimensions of the rear block I can imagine it might be possible.

I shot one and really liked the new trigger. If it's possible to retrofit the old guns with the new parts I can see that breathing some new life into them. No matter what I did I couldn't get along with the 1.0. But this 2.0 is something different altogether.

The only reason I think I might consider fitting a 2.0 fire control group to a 1.0 is for conceal carry since I can anticipate that new rougher texture really chewing up my skin when moving around for hours held close to the body.


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[tul9033]

I suspect the block is the same and I'm almost certain the sear is the same as the later 1.0 revisions. S&W started using sears with a tear shaped lobe instead of an oval a few years back. You should only need a trigger bar and the little C part.
The texture can be smoothed out with fine grit sandpaper to knock the sharp edges off.

I wonder if it would be possible to fit the new trigger assembly into the old M&Ps. I assume it would take a new trigger, trigger bar, the new sear assembly, and a new rear block (assuming the new block will fit the old frame). One I cracked open didn't look like they changed much internally on the slide except the slide stop. If they didn't change the external dimensions of the rear block I can imagine it might be possible.

I shot one and really liked the new trigger. If it's possible to retrofit the old guns with the new parts I can see that breathing some new life into them. No matter what I did I couldn't get along with the 1.0. But this 2.0 is something different altogether.

The only reason I think I might consider fitting a 2.0 fire control group to a 1.0 is for conceal carry since I can anticipate that new rougher texture really chewing up my skin when moving around for hours held close to the body.


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[Kenobi]

I suspect the block is the same and I'm almost certain the sear is the same as the later 1.0 revisions. S&W started using sears with a tear shaped lobe instead of an oval a few years back. You should only need a trigger bar and the little C part.
The texture can be smoothed out with fine grit sandpaper to knock the sharp edges off.

I imagine you're right.

I don't have one of the CORE optics ready pistols but I could imagine wanting to upgrade to the new trigger group if I did, rather than having to buy a whole new pistol when they finally release the CORE 2.0


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[vicious_cb]

So how does the new trigger compare to an apex trigger or performance center trigger? From what Ive heard they are barely better than the newer production M&Ps and reset still sucks.

[scjbash]

So how does the new trigger compare to an apex trigger or performance center trigger? From what Ive heard they are barely better than the newer production M&Ps and reset still sucks.

My 2.0 feels almost identical to my M&P with an Apex DCAEK. The reset is stronger. I can't say if it's great or sucks because it would be hard for me to care less about reset.

[Kenobi]

I'm interested to know how the new solid frame pins operate compared to the old roll pins. Are they mechanically locked somehow or are they retained by friction? Also the new slide stop spring mechanism, is it user serviceable, or is it permanently attached to the frame somehow where, if it needs replacement, it'll have to go back to S&W?

I really like the new M&P but I'd really like to see a detailed tear down video before buying one myself.


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[bloodlord77]

Any idea what the little circle mark at the front of the sear is? My 2.0 45 has it, but none of my 1.0 pistols have that mark.