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  • Labeled Smith and Wesson M&P Trigger Spring Kit M*CARBO
  • Smith and Wesson M&P Trigger Upgrade
  • Packaged Smith and Wesson M&P Trigger Upgrade Kit
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Smith and Wesson M&P Trigger Upgrade Kit 1.0 & 2.0 - 9mm | .357 | .40 cal | .45 ACP

review-star review-star review-star review-star review-star
(4.82) 130 reviews
Price: $24.95
in-stock-product Availability: IN STOCK

Retail: $29.95

You Save: $5.00(16.7%)


Quantity:
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Product Information

About This Item

  • Reduce your factory 6.75lb Trigger Pull to a modified 3.75lb Trigger Pull! (Average results can vary up to +/- 1lb)
  • Ultimate Smith and Wesson M&P Trigger Upgrade!
  • Improve Smith and Wesson M&P Pistol accuracy and overall performance
  • 50% Trigger Pull Reduction!
  • Functions in S&W M&P Models chambered in 9mm / .357 / .40cal & .45ACP
  • Works for S&W M&P 1.0 & 2.0
  • Best Aftermarket Trigger for Smith and Wesson M&P Pistols!
  • Highest Quality American Spring Steel ASTM A228 Music Wire
  • Kit also includes Assembly Dowel
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!
Description

Smith and Wesson M&P Trigger Upgrade Kit 1.0 & 2.0 - What's Included:

  • Custom Lighter Striker Spring
  • Custom Lighter Striker Block Spring
  • Custom Lighter Sear Spring
  • Custom Heavy Duty Trigger Return Spring ( Extra power reduces the felt trigger pull weight)
  • Includes Trigger Spring Installation Tool
  • 1,000 Grit Silicon Carbide Sandpaper
  • Synthetic Grease with PTFE

Reduce your Smith and Wesson M&P Trigger Pull from a stock 6.75lbs to a modified 3.75lbs!  50% Trigger Pull Reduction!

Best Custom Smith and Wesson M&P Trigger Upgrade for a lighter and smoother trigger pull. Reduce your Smith and Wesson M&P Trigger Pull by 50%.  M*CARBO specializes in Smith and Wesson M&P 9mm Aftermarket Parts for Superior Performance!

Smith and Wesson M&P 9mm Trigger Kit & 40 Trigger Kit will improve accuracy and tighten up shot groups!  

**Works for the following calibers 9mm / .357 / .40cal & .45ACP.  Also works for the S&W M&P 1.0 & 2.0!**

Hands down the Best Smith and Wesson M&P Trigger Available and the Only One Made by Combat Veterans! Take your Smith and Wesson M&P to the Next Level of Competition Performance!  

The Best Smith and Wesson M&P 40 Upgrades for a Smoother Trigger Pull. Compatible Lighter Trigger Pull with Custom Smith and Wesson M&P 9mm Upgrades for the Factory M&P Trigger.

Smith and Wesson M&P Resources:

If you're getting the Smith and Wesson M&P Trigger Spring Kit, then you might find the following Smith and Wesson M&P Resources useful in further enhancing your firearm for other Smith and Wesson M&P Accessories. Download the Smith and Wesson M&P Owners Manual.

Smith and Wesson M&P Owner's Manual

M*CARBO No Hassle 100% Lifetime Guarantee:

The Smith and Wesson M&P Trigger Upgrade Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

No Hassle 100% Lifetime Guarantee Ribbon


Drop Tested and Approved:
Smith and Wesson M&P Trigger Spring Kit includes M*CARBO ASTM Spec Springs that will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).

Drop Tested and Approved Icon

Range Tested and Approved:

The Smith and Wesson M&P Trigger Spring Kit has been tested repeatedly with numerous brands of ammunition to ensure reliable operation and safety.

Product Tested and Approved Sticker


Veteran Owned and Operated Business:

American made Smith and Wesson M&P Trigger Spring Kit designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

Veteran Owned Business Ribbon


ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Smith and Wesson M&P Trigger Spring Kit. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Reviews
Works in a shield plus
review-star review-star review-star review-star review-star
I bought this on a whim for my shield plus to see if it fit, I figured if it didn't fit I'd just put it in my old shield 1.0 instead. Well it turned out to fit fine, the trigger pull is vastly improved over the stock shield plus trigger. Totally worth the $25 and elbow grease putting it in.
m&p 2.0 10mm
review-star review-star review-star review-star review-star
Quality product, easy install. Improved reset and dropped trigger pull weight by half.
Signifigant improvement, but not as much as promised
review-star review-star review-star review-star review-star
I've installed several of your kits. The latest went into a 1st gen M&P 45. It started off with a pretty horrible gritty 6 lb. 4.5 oz trigger pull weight. The gent I got it from claimed it had an "Apex kit" in it. Springs perhaps, but the striker block was dead stock, not the rounded one Apex sells. As usual the video was Very Helpful, and it really helped me out. One curve I was thrown was instead of a guide with a nipple on it for the striker block spring I had a flat piece of stainless steel. That took a while to install, amazing what one can do with a thin wooden chopstick, I drove the spacer down, slid the rear sight over far enough to jam the 'stick, and then slowly removed the 'stick. The rest of the job went well. I have your polishing setup with the nice dremel tips and Flitz so things got nice and smooth and shiny. Once it was all back together I measured with my Lyman digital gauge an average pull weight of 4 lbs. 7.1 oz. Not exactly a 50% pull weight reduction, but the trigger IS a lot smoother due to all the polishing work done.
Smith and Wesson M&P Trigger Upgrade Kit 1.0 & 2.0
review-star review-star review-star review-star review-star
Installed this upgrade in a brand new S&W M&P 9mm v1.0 I purchased for $279 that was collecting dust on a resellers shelf. The upgrade was augmented with an Apex Action trigger, trigger only. I only used the MCARBO parts with the bare trigger. The combination gave me a fantastic trigger group for $70 less than the cost of the whole Apex trigger kit. The result is outstanding. The 3.5 lb pull feels like "butter". Combination reduced trigger travel by more than 50%. No trigger creep or spongy trigger. The trigger break is crisp and breaks clean. The trigger reset is much shorter and has a great feel to it.
review-star review-star review-star review-star review-star
I recently bought a trigger gauge and it turns out that my lightest pistol trigger is the SA of a GP100 that I have at about 2.5lbs. The second lightest trigger in a pistol is my S&W M&P 2 40 after following the MCARBO guide. It went from 6.5lbs to just over 3lbs. It is SUCH a big difference. The M&P is a great gun to begin with but at 3lb trigger pull, just WOW. It's my new favorite.
Great kit
review-star review-star review-star review-star review-star
Purchased the trigger kit for my M&P 1.0 in 40 S&W. Original pull on the trigger was a 10lb pull. Installed the kit from M Carbo and the pull was reduced to a crisp <5 lb pull. Highly recommend as the price is very economical compared to other trigger kits on the market. Everything except the trigger is included in this kit.
Upgrade
review-star review-star review-star review-star review-star
Like the video, my M&P4.25" 9mm had a heavy trigger. Using the video as a guide and just being slow and careful ,the results are a totally different smooth trigger. I think it dropped 21/2 to 3 lbs. off the pull. Polishing is a must and compliments the upgrade.
m&p trigger pull
review-star review-star review-star review-star review-star
Technical support suchs
sent 3 picks to resolve fireing pin issues asked what else to do no reply
Questions & Answers
0 0
Question:
No you have any idea when a spring will be available for a S & W m&p 2.0 10 mm
DennisFC October 23, 2022 4:05 PM
0 0
Question:
Will this kit work with the M&P 2.0 10mm?
September 6, 2022 3:43 PM
Answers
We have not tested it in the 10mm platform as of now. Per our engineers and testing in house it works for the following calibers 9mm / .357 / .40cal & .45ACP.
Answered by
Timothy Parrish / September 7, 2022 1:28 PM
0 0
Question:
Does the Smith and Wesson M&P Trigger Upgrade Kit work with the M&P 2.0 10mm with 4” barrel?
mbrumbaugh August 29, 2022 4:59 PM
Answers
We have not tested it in the 10mm platform as of now. Per our engineers and testing in house it works for the following calibers 9mm / .357 / .40cal & .45ACP.
Answered by
Timothy Parrish / October 13, 2022 10:13 AM
0 0
Question:
Will this trigger kit work on 9EZ M&P?
Joe6YCJ8JAZ August 7, 2022 5:26 PM
Answers
This trigger spring kit will not work in the Shield EZ models.
Answered by
Waldo@MCARBO / August 8, 2022 10:37 AM
0 0
Question:
This upgrade will work in the MP 9 Shield micro compact as well as the full size?
August 6, 2022 12:15 AM
Answers
Smith and Wesson M&P Shield Trigger Spring Kit 1.0 & 2.0 - 9mm | .357 | .40 cal | .45 ACP you need the shield version of this kit
Answered by
Waldo@MCARBO / August 8, 2022 9:53 AM

About This Item

  • Reduce your factory 6.75lb Trigger Pull to a modified 3.75lb Trigger Pull! (Average results can vary up to +/- 1lb)
  • Ultimate Smith and Wesson M&P Trigger Upgrade!
  • Improve Smith and Wesson M&P Pistol accuracy and overall performance
  • 50% Trigger Pull Reduction!
  • Functions in S&W M&P Models chambered in 9mm / .357 / .40cal & .45ACP
  • Works for S&W M&P 1.0 & 2.0
  • Best Aftermarket Trigger for Smith and Wesson M&P Pistols!
  • Highest Quality American Spring Steel ASTM A228 Music Wire
  • Kit also includes Assembly Dowel
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

Smith and Wesson M&P Trigger Upgrade Kit 1.0 & 2.0 - What's Included:

  • Custom Lighter Striker Spring
  • Custom Lighter Striker Block Spring
  • Custom Lighter Sear Spring
  • Custom Heavy Duty Trigger Return Spring ( Extra power reduces the felt trigger pull weight)
  • Includes Trigger Spring Installation Tool
  • 1,000 Grit Silicon Carbide Sandpaper
  • Synthetic Grease with PTFE

Reduce your Smith and Wesson M&P Trigger Pull from a stock 6.75lbs to a modified 3.75lbs!  50% Trigger Pull Reduction!

Best Custom Smith and Wesson M&P Trigger Upgrade for a lighter and smoother trigger pull. Reduce your Smith and Wesson M&P Trigger Pull by 50%.  M*CARBO specializes in Smith and Wesson M&P 9mm Aftermarket Parts for Superior Performance!

Smith and Wesson M&P 9mm Trigger Kit & 40 Trigger Kit will improve accuracy and tighten up shot groups!  

**Works for the following calibers 9mm / .357 / .40cal & .45ACP.  Also works for the S&W M&P 1.0 & 2.0!**

Hands down the Best Smith and Wesson M&P Trigger Available and the Only One Made by Combat Veterans! Take your Smith and Wesson M&P to the Next Level of Competition Performance!  

The Best Smith and Wesson M&P 40 Upgrades for a Smoother Trigger Pull. Compatible Lighter Trigger Pull with Custom Smith and Wesson M&P 9mm Upgrades for the Factory M&P Trigger.

Smith and Wesson M&P Resources:

If you're getting the Smith and Wesson M&P Trigger Spring Kit, then you might find the following Smith and Wesson M&P Resources useful in further enhancing your firearm for other Smith and Wesson M&P Accessories. Download the Smith and Wesson M&P Owners Manual.

Smith and Wesson M&P Owner's Manual

M*CARBO No Hassle 100% Lifetime Guarantee:

The Smith and Wesson M&P Trigger Upgrade Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

No Hassle 100% Lifetime Guarantee Ribbon


Drop Tested and Approved:
Smith and Wesson M&P Trigger Spring Kit includes M*CARBO ASTM Spec Springs that will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).

Drop Tested and Approved Icon

Range Tested and Approved:

The Smith and Wesson M&P Trigger Spring Kit has been tested repeatedly with numerous brands of ammunition to ensure reliable operation and safety.

Product Tested and Approved Sticker


Veteran Owned and Operated Business:

American made Smith and Wesson M&P Trigger Spring Kit designed and manufactured by Combat Veterans. We will donate a portion of your purchase to the Military Foundations we humbly support.

Veteran Owned Business Ribbon


ATTENTION:

You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Smith and Wesson M&P Trigger Spring Kit. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.

Product Reviews (130)
review-star review-star review-star review-star review-star
4.82
Works in a shield plus
review-star review-star review-star review-star review-star
I bought this on a whim for my shield plus to see if it fit, I figured if it didn't fit I'd just put it in my old shield 1.0 instead. Well it turned out to fit fine, the trigger pull is vastly improved over the stock shield plus trigger. Totally worth the $25 and elbow grease putting it in.
m&p 2.0 10mm
review-star review-star review-star review-star review-star
Quality product, easy install. Improved reset and dropped trigger pull weight by half.
Signifigant improvement, but not as much as promised
review-star review-star review-star review-star review-star
I've installed several of your kits. The latest went into a 1st gen M&P 45. It started off with a pretty horrible gritty 6 lb. 4.5 oz trigger pull weight. The gent I got it from claimed it had an "Apex kit" in it. Springs perhaps, but the striker block was dead stock, not the rounded one Apex sells. As usual the video was Very Helpful, and it really helped me out. One curve I was thrown was instead of a guide with a nipple on it for the striker block spring I had a flat piece of stainless steel. That took a while to install, amazing what one can do with a thin wooden chopstick, I drove the spacer down, slid the rear sight over far enough to jam the 'stick, and then slowly removed the 'stick. The rest of the job went well. I have your polishing setup with the nice dremel tips and Flitz so things got nice and smooth and shiny. Once it was all back together I measured with my Lyman digital gauge an average pull weight of 4 lbs. 7.1 oz. Not exactly a 50% pull weight reduction, but the trigger IS a lot smoother due to all the polishing work done.
Smith and Wesson M&P Trigger Upgrade Kit 1.0 & 2.0
review-star review-star review-star review-star review-star
Installed this upgrade in a brand new S&W M&P 9mm v1.0 I purchased for $279 that was collecting dust on a resellers shelf. The upgrade was augmented with an Apex Action trigger, trigger only. I only used the MCARBO parts with the bare trigger. The combination gave me a fantastic trigger group for $70 less than the cost of the whole Apex trigger kit. The result is outstanding. The 3.5 lb pull feels like "butter". Combination reduced trigger travel by more than 50%. No trigger creep or spongy trigger. The trigger break is crisp and breaks clean. The trigger reset is much shorter and has a great feel to it.
review-star review-star review-star review-star review-star
I recently bought a trigger gauge and it turns out that my lightest pistol trigger is the SA of a GP100 that I have at about 2.5lbs. The second lightest trigger in a pistol is my S&W M&P 2 40 after following the MCARBO guide. It went from 6.5lbs to just over 3lbs. It is SUCH a big difference. The M&P is a great gun to begin with but at 3lb trigger pull, just WOW. It's my new favorite.
Great kit
review-star review-star review-star review-star review-star
Purchased the trigger kit for my M&P 1.0 in 40 S&W. Original pull on the trigger was a 10lb pull. Installed the kit from M Carbo and the pull was reduced to a crisp <5 lb pull. Highly recommend as the price is very economical compared to other trigger kits on the market. Everything except the trigger is included in this kit.
Upgrade
review-star review-star review-star review-star review-star
Like the video, my M&P4.25" 9mm had a heavy trigger. Using the video as a guide and just being slow and careful ,the results are a totally different smooth trigger. I think it dropped 21/2 to 3 lbs. off the pull. Polishing is a must and compliments the upgrade.
m&p trigger pull
review-star review-star review-star review-star review-star
Technical support suchs
sent 3 picks to resolve fireing pin issues asked what else to do no reply

Questions & Answers

5 Questions

0 0
Question:
No you have any idea when a spring will be available for a S & W m&p 2.0 10 mm
DennisFC October 23, 2022 4:05 PM
0 0
Question:
Will this kit work with the M&P 2.0 10mm?
September 6, 2022 3:43 PM
Answers
0 0
We have not tested it in the 10mm platform as of now. Per our engineers and testing in house it works for the following calibers 9mm / .357 / .40cal & .45ACP.
Answered by
Timothy Parrish / September 7, 2022 1:28 PM
0 0
Question:
Does the Smith and Wesson M&P Trigger Upgrade Kit work with the M&P 2.0 10mm with 4” barrel?
mbrumbaugh August 29, 2022 4:59 PM
Answers
0 0
We have not tested it in the 10mm platform as of now. Per our engineers and testing in house it works for the following calibers 9mm / .357 / .40cal & .45ACP.
Answered by
Timothy Parrish / October 13, 2022 10:13 AM
0 0
Question:
Will this trigger kit work on 9EZ M&P?
Joe6YCJ8JAZ August 7, 2022 5:26 PM
Answers
0 0
This trigger spring kit will not work in the Shield EZ models.
Answered by
Waldo@MCARBO / August 8, 2022 10:37 AM
0 0
Question:
This upgrade will work in the MP 9 Shield micro compact as well as the full size?
August 6, 2022 12:15 AM
Answers
0 0
Smith and Wesson M&P Shield Trigger Spring Kit 1.0 & 2.0 - 9mm | .357 | .40 cal | .45 ACP you need the shield version of this kit
Answered by
Waldo@MCARBO / August 8, 2022 9:53 AM

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