Stoeger M3000 / M3500 Trigger Spring Kit

  • Custom Lighter Hammer Spring
  • Custom Lighter Firing Pin Spring

Reduce your Stoeger M3000 or Stoeger M3500 Trigger Pull by 25% froma Heavy Factory 7.25lbs to a Modified 5.25lbs.  A much smoother, lighter and more consistent trigger pull!

The Stoeger M3000 / M3500 Trigger Spring Kit is one of the Best Stoeger M3500 Accessories to improve your accuracy and performance. Also works for the Stoeger M3000 Trigger.

One of the Best Stoeger M3500 Upgrades to improve the Stoeger M3500 and Stoeger M3000 reliability and performance with lighter, higher quality springs for a smoother and more consistent Stoeger M3500 Trigger Pull!

This is the best way to upgrade your Stoeger M3000 Trigger! M*CARBO specializes in American Made Stoeger M3500 Accessories for Superior Performance! Let us know if you have any ides for New Stoeger M3000 Upgrades at!

Superior Stoeger M3500 Aftermarket Parts for the Best Stoeger M3500 Trigger Pull! Custom Stoeger M3500 upgrades to Increase Performance and Improve Reliability. Stoeger M3500 Trigger Upgrade for Superior Performance by Combat Veterans! Custom Stoeger M3000 Trigger Job!

Best Stoeger M3500 Trigger Job to reduce the Heavy Factory Stoeger M3500 Trigger Pull!

Upgrade the factory Stoeger M3500 Parts with a Superior Stoeger M3500 Aftermarket Part designed for Competition Level Performance!

Stoeger M3000 / Stoeger M3500 Owners Manual & Exploded View:

If you're getting the Stoeger M3000 / M3500 Trigger Spring Kit, then you might find the following Stoeger M3000 / M3500 Resources useful in further enhancing your firearm. Download the Stoeger M3000 Owners Manual or Stoeger M3500 Owners Manual to plan your next firearm project.

M*CARBO No Hassle 100% Lifetime Guarantee:

The Stoeger M3000/M3500 Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Stoeger M3000 / M3500 Trigger Spring Kit is built with M*CARBO ASTM Spec Springs that will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).

Tested and Approved:

The Stoeger M3000 / M3500 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 Stoeger M3000 / M3500 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 Stoeger M3000 / M3500 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 49 Reviews:

I can feel the difference

Replaced both springs easily, can definitelly feel the difference, when I pull the trigger. Will test in real conditions, when I go shooting om the range.
Reduced hammer spring (im combination of reduced rate recoil spring) also additionally should help on jamming, when shooting lighter shells because the bolt needs to overcome that spring tension too, when cocking the hammer.
One idea: While moving backwards, bolt also needs to "press" carrier spring, so I believe, if there will be a ligther carrier spring, it will also contribute to lighter reloads, but it's just an idea and needs to be tested.
I have made a video of my replacement

Simply Awesome!

Spring kit was installed and field tested within an hour of getting it in the mail. The spring kit performance is simply awesome. Very satisfied with it!

Sweet kit

Pretty straight forward and easy installation. Great video to follow. Great trigger pull when done. I didn't measure the difference in pull, but you can easily feel the improvement. Thanks!

Awesome addition!

Installed in a stoeger m3000 and couldn’t be happier with the results. I own a browning maxus as well and it is very comparible to that now. Amazing product, shipping and service! As a veteran of 20 years it’s always great to do buisness with outstanding fellow veterans! Great job guys!!

Very pleased

I have to say Mcarbo is a top notch company. Fast easy ordering,super quick shipping,and perfect parts. This spring kit made a huge difference in my Stoeger M3500! Thanks Mcarbo!

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