• Nearly 55% Trigger Pull Reduction!
  • Reduce your trigger pull from a stock 3.25 lbs to a modified 1.5 lbs
  • Get the Best Ruger PC Carbine Trigger Job!
  • Improve accuracy and overall rifle performance
  • Ruger PC Carbine Trigger Upgrade includes a Custom Trigger Return Spring, Custom Hammer Spring, Custom Sear Spring
  • Highest Quality American Spring Steel ASTM A228 Music Wire
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!

Ruger PC Carbine Trigger Spring Kit

  • Custom Ruger PC Carbine Lighter Trigger Return Spring 
  • Custom Ruger PC Carbine Lighter Sear Spring
  • Custom Ruger PC Carbine Lighter Hammer Spring

Best Ruger PC Carbine 9mm Trigger Upgrade for Increased Performance. Lighter Trigger Return Spring for a Direct Ruger PC Carbine Trigger Improvement. Custom Ruger PC Carbine Accessories by Combat Veterans! 

This is one of the best trigger improvements you can make to your Ruger PC Carbine aside from the Ruger PC Carbine Flat Trigger that allows the user to place their finger lower on the trigger face, improving leverage and lowering the feel of the trigger pull.  Get both to install at the same time to get the most desirable trigger pull available on the market for your Ruger PC Carbine.

If you have ideas for more Ruger PC Carbine Mods send us an email. The PC Carbine Trigger Mod is a must have Ruger PC Carbine Upgrades! No need to have a 5 lb trigger and limit the Ruger PC Carbine Accuracy. Improved Accuracy with Custom Ruger PC Carbine Parts designed by Combat Veterans! Best way to improve the Ruger PC Carbine Trigger with the lighter trigger return spring. Custom Ruger PC Carbine Trigger Job that takes 15 minutes or less. Custom Ruger PC Carbine Mods to Improve Performance and Accuracy!

Best Pro Ruger PC Carbine Upgrades for Competition Level Performance!  Best Ruger PC Carbine Aftermarket Parts to get the Most Performance out of your Ruger PC Carbine 9mm! Check out the Ruger PC Carbine Muzzle Brake we've got for reduced recoil and muzzle flip.

Ruger PC Carbine Owners Manual & Exploded View:

If your getting the Ruger PC Carbine Trigger Spring Kit, then you might find the following Ruger PC Carbine Resources useful in further enhancing your firearm. Download the Ruger PC Carbine Owners Manual or use the Exploded View of the Ruger PC Carbine Parts Diagram to plan your next firearm project. Print or Download the Ruger PC Carbine Trigger Spring Kit Instructions by MCARBO.

No Hassle 100% Lifetime Guarantee on Parts & Accessories:

The Ruger PC Carbine Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee. This means that at any time you can send it back and we will exchange it, issue a refund or assist you in any way possible. We even pay return shipping and automate the return process here!

Drop Tested and Approved:

Ruger PC Carbine 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 Ruger PC Carbine 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 Ruger PC Carbine 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 Ruger PC Carbine 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 120 Reviews:

Great improvement

Install took me about a half hour and this was my first time disassembling the rifle. Was installed with the MCARBO Flat Trigger. Reduced pull. Crisp break. Short reset. Easily the best thing I've done to my PC9 to date.


Made a good rifle great.

This is a much easier job than I though it would be. I had this and the trigger swapped out in just a few minutes. Now talk about a change. The pull is about half as what it used to be. This combined with the M.CARBO trigger sure makes one H of a great upgrade. Bravo Zulu M.CARBO.

Easy Trigger Upgrade

The MCARBO spring kit is very high quality and very easy to install. I just installed the reduced power hammer spring, and I immediately noticed how much smoother the bolt slides open. I’m hoping it will help reduce FTE and FTF jamming. Trigger pull was ok initially, and slightly lighter after install. Of course I installed their upgraded extractor as well!


Significant improvement

Polish the sear,disconnect,and hammer as instructed with 1000 grit. Huge difference rather than just installing the springs. They're synergistic

trigger spring kit

This review is tardy as I got this kit back in February of '19 when it was just the trigger return spring and the sear spring. Noticeable improvement.

Did notice when ordering additional items that this kit was upgraded to include the hammer spring. Would have been nice for those of us who purchased it back when were informed that it was enhanced with the hammer spring.

MCarbo with it's usual customer service focus addressed my concern and are adding that hammer spring to a back order on the new extractor I am waiting on. Nice touch, very classy move!