Mossberg 500 trigger job and Mossberg 835 trigger job will adjust your trigger pull to a lighter, smoother trigger.
  • Reduce your trigger pull from a factory weight of 8.5 lbs to a lighter 4.75 lbs
  • Kit includes: Custom Hammer Spring & Trigger Return Spring
  • Improve your accuracy and performance
  • Designed for Mossberg Model Shotguns: 500, 505, 535 ATS, 590, 835 Ulti-Mag, Maverick 88
  • Made of the highest quality spring steel ASTM A228 Music Wire
  • Protected by the M*CARBO 100% Lifetime Guarantee
  • Made in the USA!
  • Fast Same Day Shipping!
  • We recommend using the Mossberg 500 / 835 Trigger Assembly Tool

Mossberg 500 / 835 & Maverick 88 Trigger Spring Kit

  • Consists of 2 custom designed and manufactured springs:
  1. Hammer Spring
  2. Trigger Return Spring

The Mossberg 500 / 835 & Maverick 88 Trigger Spring Kit will reduce your trigger pull by nearly 50% from a factory weight of 8.5 lbs to a modified weight of 4.75 lbs. One of the Best Mossberg 500 Accessories available! The Mossberg Pump Action Shotgun Trigger Job will reduce malfunctions, improve accuracy and overall performance of your Mossberg Pump Action Shotgun. This Trigger Spring Kit is constructed of the highest quality spring steel available, ASTM A228 music wire and are made right here in the USA.Be advised that Mossberg uses the same trigger assembly in a majority of their shotguns and for this reason the M*CARBO Trigger Spring Kit will fit a variety of Mossberg Shotgun Models. This Mossberg 500/835 Trigger Spring Kit will work for the following Mossberg Model Shotguns: 500, 505, 535 ATS, 590, 835 Ulti-Mag, Don't forget it's a popular for Maverick 88 Accessories. This Trigger Spring Kit works for 12, 16, 20, 28 gauges and .410 bore. This spring kit will reduce your trigger pull by nearly 50% from a factory weight of 8.5 lbs to a modified 4.75 lb trigger pull. Installation takes approximately 20-30 minutes to install. Backed by our M*CARBO No Hassle 100% Lifetime Guarantee!

*** We recommend using the Mossberg 500 / 835 Trigger Assembly Tool ***

Mossberg 500/835 Resources:

Use the following Mossberg 500/835 Resources to further enhance your firearm. Download the Mossberg 500/835 Owners Manual or use the Exploded View of the Mossberg 500/835 Parts Diagram to plan your next firearm project.

No Hassle 100% Lifetime Guarantee:

The Mossberg 500 / 835 & Maverick 88 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.


Tested and Approved:

The Mossberg 500 / 835 & Maverick 88 Trigger Spring Kit has been tested with numerous brands of ammunition to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American Made Parts designed and manufactured by Combat Veterans. We donate a portion of your purchase to the Military Foundations we humbly support.

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. Installation by MCARBO is available and recommended. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Mossberg 500/835 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: Which Mossberg Shotguns will this kit work for?

A: The MCARBO Mossberg 500 / 835 Trigger Spring Kit will work for the following Mossberg Model Shotguns:500, 505, 535 ATS, 590, 835 Ulti-Mag.

Q: Which gauges will the Mossberg 500 / 835 Trigger Spring Kit work for?

A: 12, 16, 20, 28 GAUGES and .410 Bore

Q: Will this kit work in the .410?

A: Yes it will not work in the .410 bore

Q: Do you recommend removing the smaller inner hammer spring in the 590A1, when replacing the larger hammer spring with the MCARBO hammer spring?

A: The factory hammer spring will look smaller because it's "taken a set" which means it's broken in and been compressed long enough to look smaller. Use all MCARBO springs in the kit to get the largest trigger pull reduction.

Q: Should I be concerned with any malfunctions or light strikes after installing this kit?

A: No, all of our MCARBO Trigger Spring Kits have been professionally engineered, designed and manufactured to reduce trigger pull while maintaining 100% reliability of the firearm. You will not experience any sort of light strike or malfunction but you will experience a crisp smooth lighter trigger pull. Guaranteed or your Money Back!

No Hassle M*CARBO 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. No Hassles Ever!

We pride ourselves in making quality parts for guys like us that appreciate great performance out of a well made firearm. So if you don't get the results you we're expecting or just don't like it. We will make it right by any means necessary. Send us an email to help@mcarbo.com We also pride ourselves in outstanding customer service so send us an email and we will show you.

Once you're part of the M*CARBO Brotherhood your not just a customer...you're a Brother! M*CARBO Brotherhood - Veterans, Police Officers and 2nd Amendment Patriots! A portion of all sales go to the Military Foundations we humbly support.

ATTENTION: We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon my be prohibited in your state. 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 my be incurred.

Overall Customer Rating of 157 Reviews:
GA

Good Product

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Installed the MCARBO kit on my Mossberg 590A1. And no you do not have to reinstall the small inner hammer spring per MCARBO support. The trigger pull wgt went from 9.5lb to 5.5lb. It probably would've been better had I not bent the trigger return spring after stupidly getting it caught in the hammer spring cut out when pressing the trigger down. Likely work hardened the spring when straightening it increasing its k-factor.

Oregon

Spring kit

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Installed in a jiffy dramatically reduced trigger pull

Va.

Great service fast shipping

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Order spring kit and tool for my 835. Didn't have a trigger scale but seems to be much better. The service you get with this company is outstanding.

IA

Very worthwhile kit

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Along with the spring kit, I purchased the spring compression tool. You could make your own from a piece of 5/16" dowel rod, but it's not worth the effort for $1.95. The tool makes spring compression a breeze.

Installation of the kit took about 20 minutes start to finish, and reduced trigger pull form 7 lbs-12 ozs to 5 lbs-3 ozs (about 33%). Before installation of the spring set, I also worked all the stamped surfaces of the safety and used a Youtube video as a guide to take most of the latency from the trigger pull.

I'm very satisfied with the kit and expect this will smooth out my trap shooting quite a bit,

Florida

Fantastic Upgrade

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As always, Chris and company think up a great product, produce it, make a great instructional video and ship it. The spring kit was received very quickly and made the trigger pull just right. Highly recommended!