Tale of two M&P 40fs - trigger

rdtompki

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New handgun owner who has been shooting his CA-compliant 40fs for 4 months or so (1300 rounds). Just picked up a new 40fs (non-CA) and went to the range with both handguns. Didn't have a great session, but that's another story. Both guns shot well. I believe the sights are accurate on the new addition. I could tell that the triggers didn't quite feel the same.

Here's the difference: The CA model, probably test fired Jan 2014 (I'll verify), has a bit of grit in the trigger slack while the newer model feels smoother during take up. The really interesting difference is trigger reset. The early 2014 model has a definite false reset; the newer model does not have this anomaly. I wouldn't have thought there would be a difference in two such recent handguns. The "new" 40 was actually test fired back in September 2013 so I think there is a good chance that its date of manufacture is actually earlier than the 40 I've been firing.

Any thoughts on why this might be the case? Based on the better trigger reset with the new addition I'll probably switch to this version for most of my range work, instruction and IDPA, but I'd like to get both handguns feeling the same without going to Apex. I'm not adverse to Apex BTW, I just wanted to master the stock triggers before making a decision. I'm a new handgun owner and the trigger is not holding me back!
 
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What is the actual value of the trigger parts that control the difference you are feeling? 5 cents each? These parts are not made by Rolls Royce. There are tolerances in these cheap parts, & no 2 parts are exactly the same. When I purchased my AR-15, the seller had 2 identical lowers both made within 10 minutes of each other using the same parts. One had the worst trigger I could imagine, & the other I would swear was a match trigger. But yet both were exactly the same parts. Needless to say, I took the better lower. But the point is there are tolerances in modern mfg, & this could be why both guns seem so different. GARY
 
What is the actual value of the trigger parts that control the difference you are feeling? 5 cents each? These parts are not made by Rolls Royce. There are tolerances in these cheap parts, & no 2 parts are exactly the same. When I purchased my AR-15, the seller had 2 identical lowers both made within 10 minutes of each other using the same parts. One had the worst trigger I could imagine, & the other I would swear was a match trigger. But yet both were exactly the same parts. Needless to say, I took the better lower. But the point is there are tolerances in modern mfg, & this could be why both guns seem so different. GARY

Gary, thanks. Understand completely. I'm wondering whether there actually have been any trigger changes in the period of interest. If not, I can certainly understand manufacturing tolerances. When they test fire the fun I suspect the acceptance criteria is the presence of a discernible "bang".
 
Many people on this forum swear that there have been trigger changes in the last year with improvements. I have e-mailed S&W twice about this, & they deny it. According to S&W, nothing has changed in their trigger parts, & they've been exactly the same for years. These guns aren't Colt Pythons. They are mid priced utensils meant for self defense that go bang every time. Nothing more. GARY
 
I give:), but I'm sticking with "tool". I'll have to consider an HD-compatible Apex kit that also works for IDPA. The reset difference in what are otherwise two "identical" handguns is a non-starter. This is a good thing in that it gives me a legitimate excuse for the change;)
 
The difference is in the slide stop. There is a new slide stop that puts pressure on the thrust bar. This pressure enhances the reset feel. The CA guns did not get this update because it would be a mechanical change and would have had to go back through the testing process CA requires.

Sent from my SM-G900V using Tapatalk
 
The difference is in the slide stop. There is a new slide stop that puts pressure on the thrust bar. This pressure enhances the reset feel. The CA guns did not get this update because it would be a mechanical change and would have had to go back through the testing process CA requires.

Sent from my SM-G900V using Tapatalk

Would the sear housing block likely be different then? Seems like there was a change in later 2013 which would also be absent in the CA model. If that's the case I'll put one on backorder. (Not that I know the difference from a functional standpoint)
 
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