Smith and Wesson M&P Shield Trigger Spring Kit 1.0 & 2.0 - 9mm | .357 | .40 cal | .45 ACP

  • Custom Lighter Striker Block Spring
  • Custom Lighter Sear Spring
  • Custom Lighter Striker 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
Smith and Wesson M and P Shield Trigger Spring Kit Parts

Reduce your S&W Shield Trigger Pull from a Stock 5.5lbs to a Modified 2.5lbs. Smith and Wesson Shield Trigger Spring Kit will give your trigger a smoother, lighter, more crisp feel to your trigger pull. Best S&W Shield Trigger Upgrade to reduce your Trigger Pull by 55%  

  • Works for S&W M&P 1.0 & 2.0 Shield Models chambered in 9mm, .357,  40 cal and .45 caliber pistols

We highly recommend doing the polishing of all the internal components with this Firearm Polishing Kit.

Best Smith and Wesson Shield Trigger Job Available! Custom Smith & Wesson Shield Upgrades for a Smoother and Lighter S&W Shield Trigger! Check out the Installation video for Step by Step instructions on How to Polish S&W Shield Trigger! 

A must have Smith and Wesson Shield Upgrade for all S&W M&P Shield 1.0 & 2.0 Pistols! Custom Smith and Wesson Shield Trigger for all Smith and Wesson M&P Shield 9mm Accessories. Also works for Smith and Wesson M&P Shield 40 Accessories.

The S&W Shield Extra Power Trigger Return Spring is 28% more powerful than stock, which seems unnatural but it helps to reduce the felt trigger pull due to the design of the internal trigger mechanism and simultaneously provides increased tension that gives extra strength for a faster trigger reset.

S&W M&P Shield Trigger Kit will give a smoother, lighter, more crisp feel to your trigger pull. Our springs are American Made with the Finest American Spring Steel for quality that will last!  M*CARBO specializes in Smith and Wesson Shield Aftermarket Parts! 

Smooth S&W Shield Trigger Action and Superior Performance! 

*Works for all Smith and Wesson M&P Shield 1.0 & 2.0 Models chambered in 9mm | .357 | .40cal | .45 ACP*

Best Custom Smith and Wesson Shield Trigger Job for a Complete Match Trigger!

Custom Smith and Wesson Shield Trigger Job includes accurately calibrated spring weights that deliver consistent force through the entire compression and release cycle to give you a light, refined trigger pull without sacrificing the reliability of your pistol's Safe Action system. The S&W Shield Trigger Return Spring has nearly 30% more power than the factory spring, which actually reduces pull by as much as 1lb for improved control. This produces a faster trigger reset for quicker follow up shots. 

Smith and Wesson M&P Shield Owners Manual & Exploded View:

If you're getting the Smith and Wesson M&P Shield Trigger Spring Kit, then you might find the following M&P Shield Resources useful in further enhancing your firearm. Download the Smith and Wesson M&P Shield Owners Manual or use the Exploded View of the M&P Shield Parts Diagram to plan your next firearm project.

M*CARBO No Hassle 100% Lifetime Guarantee:

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

Drop Tested and Approved:
Smith and Wesson M&P Shield 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"+).

Range Tested and Approved:

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

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.


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 Shield 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.

Overall Customer Rating of 125 Reviews:

This is clearly the best 'how to' video I've ever seen. I was encouraged to attempt the trigger spring kit install myself even though I'd never disassembled a gun before. The YouTube guided me through the install easily. (except for the rear sight removal and reinstall. Note to others: if you place the slide in freezer overnight, the steel contracts just enough to make sight removal and install a whole lot easier!) Prior to the kit install, my trigger pull was at just about 6lbs. Afterwards it tested at 2.8 and is now very smooth; I am just thrilled!

Florida Panhandle

Very satisfied .40 cal. S&W M&P Shield

I bought this kit for my .40 cal. and the feed ramp polishing kit. I followed every step shown in the video and then some. I did all the polishing by hand on all the parts to a lustrous shine. According to my wheeler tool it reduced my trigger pull from 5.4lbs. to a sweet 3.2lbs. The trigger went from a sort of sloppy pull to a crisp take up and snap. Ammo feeds flawlessly. I swear I even shoot straighter now : o)
Very sweet deal, fast shipping, and a great kit which I highly recommend.

S&w trigger kit

Price was very good. Kit did just what it was designed to do. Trigger spring install tool could be rounded on one end to make it easier to push it out with trigger pin. Trigger is way better than before. Thanks and thanks for ur service.


Shield 2.0 kit

Awsome kit well worth the money highly recommend 5++++ stars.. Fast delivery!! Ty..

shield 1.0 spring upgrade

I installed the kit and performed the polishing just as the video instructed. The work was not hard but took some time. well worth the time invested. 3 lbs off my trigger pull, tighter groups and accuracy. I couldn't be happier.

Number of questions: 0