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05-07-2019, 12:31 PM
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M and P Shield 1.0 9 MM trigger pull wt
Hi people, I recently made an upgrade in my M & P Shield 1.0 9 mm . I installed the Apex sear but didn't change the sear spring I left the OEM sear spring in place . I then replaced the striker block with the Apex striker block .I then installed the Apex flat foreword trigger shoe to replace the OEM trigger shoe , I left the OEM trigger return spring in place . I like the Apex trigger shoe for its safety . I find now I have a trigger pull weight of between 1.8 to 2.8 ,this is for everyday carry . I understand this is not recommended for everyday carry by S & M nor Apex ,my question is why ,is this dangerous and how is it dangerous? I have owned firearms for 47 years ,just not these and only one automatic ( a 32mm 1910 Browning) . I am comfortable with this "extreme"light weight trigger ,just would like to know the dangers ,if any of this trigger pull weight for everyday carry.
THANKS for your input....
UPDATE::
I installed the Apex Duty Carry trigger return spring and the sear spring. I have a 5.2 /5.5 trigger pull :;THANKS to all for their help /input
Last edited by Miken1; 05-11-2019 at 02:21 PM.
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05-07-2019, 12:46 PM
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I shoot just fine with 5.5-6.5 lb triggers so I guess I see no reason to go any lighter, especially for carry. I'll smooth out the contact surfaces, but don't change the weight or travel.
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05-07-2019, 12:53 PM
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With cold hands, you can't feel a 2# trigger. Course, it never gets cold in Chicago...…..
If you "prep" the trigger (take up the slack for a precise shot) you may not feel when the slack is out, and shoot before you intended (like when transitioning between targets). I have a 4# trigger on the M&P I use in competition, and I can't think of any advantage to having a lighter one.
Most people who come to my classes with hair triggers are trying to compensate for a well-developed habit of yanking the trigger. I have them shoot a SW9VE and learn proper trigger control.
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05-07-2019, 12:57 PM
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I think you may be right , I have a Glock 9MM I tend to yank and sometimes slap that trigger . I never thought of the "cold" factor.. thank you !! Hey I'm still learning...
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05-07-2019, 05:13 PM
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Over in the “General Topics—Concealed Carry” subforum is this explanation of liabilities with light trigger pulls by Massad Ayoob. I don’t agree with everything he says, but he is a legal expert and I am not.
Facts About "Light Trigger Pull Liability"
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05-08-2019, 08:16 AM
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On another brand pistol that I have worked on extensively, installed the equivalent to Apex parts, and compete in IDPA with, I find I prefer 3.5# to 4#. For me anyway, a 3# is too light and I have, a few times, gotten unintended double taps while practicing. My wife's G19 and my M&P9c carry guns both have 5.5# or so trigger pulls. You might want to try installing Apex's Duty/Carry trigger spring.
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05-08-2019, 09:23 AM
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Very light trigger pulls are for bench rest rifles rather than handguns.
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05-08-2019, 10:12 AM
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I have 2 ea 9mm Shield 1.0 pistols that I installed the Apex Sear on. I only installed the Apex sear and left the S&W factory springs and trigger in place. Trigger pull on both of these pistols averages 4.5 lbs. On my 9mm Shield 2.0 the trigger pull averages 5.5 lbs from the factory: no alterations. I'm using a Timney 10 lb Trigger Pull Scale.
Your Shield trigger pull weight is less than I adjust my bolt action rifles to: ~3.5 lbs.
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05-08-2019, 10:35 AM
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You might consider using the Apex sear spring. And maybe trigger spring as well to "split the difference" and get back a slight amount of poundage.....YMMV
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05-08-2019, 10:39 AM
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Quote:
Originally Posted by jim46ok
You might consider using the Apex sear spring. And maybe trigger spring as well to "split the difference" and get back a slight amount of poundage.....YMMV
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THANK YOU! I ordered those parts yesterday, I never meant to get such a light trigger from the parts I had and had not installed. One thing that it did do was show me the responsibility that I took on , I looked irresponsible by what I had done and will correct this immediately.
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05-08-2019, 12:35 PM
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Someone else posted this Apex chart on another thread...that I cannot find. Anyway, it is useful for indicating expected results when mixing Apex + S&W parts. It is not specifically for the Shield, but will give you a relative direction to go with your springs....
Dial In Your M2.0 Flatty – Apex Tactical Specialties
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05-08-2019, 03:38 PM
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A trigger pull at 2 lbs is unsafe for a center fire semi auto pistol from a mechanical standpoint. Period. Regardless of use.
From the legal standpoint, you've essentially put everything you own and about 20% of your future earnings at risk should there be an accidental or negligent discharge. Accidental being defined as due to mechanical issues. Negligent means you had your finger where it shouldn't have been. I see you've realized this and have taken steps to try to rectify your problem.
While I've never shot a Shield, the M&P 1.0 (first production run) was my issue firearm from 2006 to retirement in 2015. I saw absolutely nothing wrong with the stock ~6.5 lb trigger for duty/carry use. No offense, but the money spent on parts would have been better spent of practice ammunition. You cannot widget your way to competence.
If you're expecting to carry the firearm for protection purposes, it's best to have any work done by known experts. Apex itself or the S&W Performance Center.
Last edited by WR Moore; 05-08-2019 at 03:41 PM.
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05-09-2019, 12:16 PM
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Quote:
Originally Posted by WR Moore
A trigger pull at 2 lbs is unsafe for a center fire semi auto pistol from a mechanical standpoint. Period. Regardless of use.
From the legal standpoint, you've essentially put everything you own and about 20% of your future earnings at risk should there be an accidental or negligent discharge. Accidental being defined as due to mechanical issues. Negligent means you had your finger where it shouldn't have been. I see you've realized this and have taken steps to try to rectify your problem.
While I've never shot a Shield, the M&P 1.0 (first production run) was my issue firearm from 2006 to retirement in 2015. I saw absolutely nothing wrong with the stock ~6.5 lb trigger for duty/carry use. No offense, but the money spent on parts would have been better spent of practice ammunition. You cannot widget your way to competence.
If you're expecting to carry the firearm for protection purposes, it's best to have any work done by known experts. Apex itself or the S&W Performance Center.
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I know , and once again ,I never meant to get such a light trigger from the parts I had and had not installed. One thing that it did do was show me the responsibility that I took on , I looked irresponsible by what I had done and will correct this immediately, even if that means that I go back to the OEM parts .
Last edited by Miken1; 05-09-2019 at 12:18 PM.
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05-11-2019, 02:15 PM
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Quote:
Originally Posted by jim46ok
You might consider using the Apex sear spring. And maybe trigger spring as well to "split the difference" and get back a slight amount of poundage.....YMMV
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Thanks jim46ok .I installed the Apex Duty Carry trigger return spring and the sear spring. I have a 5.2 /5.5 trigger pull ..I noticed the difference in with the trigger return spring as soon as I pulled the trigger. I am satisfied with this weight , never realized those two springs made such a difference .
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05-11-2019, 02:19 PM
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Thanks for all the help and criticism .. I needed that ,lol.
I installed the Apex Duty Carry trigger return spring and the sear spring. I have a 5.2 /5.5 trigger pull . I originally removed the gritty feeling in the trigger and thought that was the cause of a lighter trigger pull but it was not the cause , not changing those two springs was what almost got me into trouble....
THANKS again!
Last edited by Miken1; 05-11-2019 at 02:33 PM.
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