• Reduce your Sig Sauer P238 & P938 Trigger Pull from 5-6 lbs to 2.5lbs!
  • Ultimate Sig Sauer P238 & P938 Trigger Upgrade!
  • 50% Trigger Pull Reduction
  • Functions in all Sig Sauer P238 & P938 Models and Calibers
  • Improve Sig Sauer P238 & P938 Pistol Accuracy and Overall Performance
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

Sig Sauer P238 / P938 Trigger Spring Kit

  • Consists of 2 custom designed and manufactured springs:
  • Lighter Hammer Spring
  • Lighter Firing Pin Spring

The Sig Sauer P238 & P938 Trigger Spring Kit will give you a reliable trigger pull reduction with a custom reduced power firing pin spring and reduced power hammer spring.  Reduce your Sig Sauer P238 Trigger Pull by 50% from 5lbs to 2.5lbs!

M*CARBO specializes in Custom Sig Sauer P238 Accessories to Improve Performance and Accuracy!  American Made Sig Sauer P938 Trigger Kit is the perfect Sig Sauer P938 Accessories for Ultimate Night & Day Trigger Improvement!  Fully Custom Sig Sauer P238 Parts and Sig Sauer P238 Upgrades in the works!  Let us know what else your looking for.

Custom Sig Sauer P238 380 Accessories for Best Sig Sauer P238 Trigger Upgrade to Improve Accuracy and Performance!

Sig Sauer P938 Trigger Upgrade for Best Trigger Pull Reduction and Performance!

Best Sig Sauer P938 Custom Trigger to reduce your trigger pull, reduce malfunctions and improve accuracy.  Add this one to your list of custom accessories for Sig Sauer P238 because it's a must have for better performance and function!

Installation video will cover Sig Sauer P938 Disassembly and How to Disassemble Sig Sauer P238.  Sig Sauer P238 Disassembly is the same for the Sig Sauer P938.  Instructions will also cover Sig Sauer P238 Cleaning and Sig Sauer P238 Parts Diagram.

Sig Sauer Owners Manual and Parts Diagram:

If your getting the Sig Sauer P238/P938 Trigger Spring Kit, then you might find the following Sig Sauer P238 and Sig Sauer P938 Resources useful in further enhancing your firearm.  Print or Download the Sig Sauer P238 Owners Manual and P238 Parts Diagram.  Print or Download the Sig Sauer P938 Owners Manual and P938 Parts Diagram.

M*CARBO No Hassle 100% Lifetime Guarantee:

The Sig Sauer P238/P938 Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Sig Sauer P238/P938 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 Sig Sauer P238/P938 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 Sig Sauer P238/P938 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 Sig Sauer P238/P938 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.

Q: Will this work for the P238 or P938?

A: Yes it will work for both the P238 and P938 as they use the same springs from the factory.

Q:  Will this work with the P938-22?

A:  Unfortunately it will not.  The P938-22 has a different firing pin spring.

Overall Customer Rating of 68 Reviews:
Shreveport, LA

Major Improvement and Video Made install Easy

The springs worked perfectly with my Sig 938 and the installation video made it very easy. I would definitely order the parts again and I'll definitely order from MCARBO in the future.


Trigger like it should be out of the box on a Sig

I'm happy with the results I got from polishing and installing the trigger spring kit on my Sig P938. This improvement was easy and didn't take long. The trigger on my 938 was very heavy out of the box. The excessive pull weight made it difficult to shoot accurately with a gun with such a small grip. I used the polishing kit and installed the new springs as instructed in the video that is provided. The end result is a significant reduction in trigger pull weight and smoothness. This is exactly what I was hoping for. Although I don't have a trigger pull gage, I am sure that the pull reduction wasn't 50%. However I wasn't really wanting a 2 1/2lb trigger in a carry gun anyway. I wanted the trigger pull to be lightened just enough to make accurate shooting much easier. The spring kit accomplished this.
Thanks Mcarbo for such a easy and cost effective solution!


Sig P238

I installed the spring kit in 2 P238s. I followed the video produced by M CARBO. Great instruction every step of the way. Lighter trigger and works excellent. I recommend this and will purchase from M CARBO again.

Crystal River,FL

P238 trigger spring kit

I have access to two Sig P238 guns.
I installed the spring kit in only one of them.
When comparing the two after the installation I was unable to tell any significant difference between them.
Heed the warning about losing the safety detent and spring.
Took a while to find it . When installing I suggest pacing a small towel over the gun to catch the spring should it fly out.

North Texas

Installed my 938 sig sauer trigger sping kit with little polishing. I have a cheap pull gauge. It showed to go from 7 lb to 4 1/2 lb. It shoots sweet now and am much better shooter.