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  • Labeled Ruger M77 Trigger Spring Kit - Trigger Return Spring
  • Ruger M 77 Trigger Trigger Spring Kit with Shims and Synthetic Grease
  • Packaged Ruger 77/22 Trigger Adjustment Spring Kit
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Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit

review-star review-star review-star review-star review-star
(4.69) 140 reviews
Price: $19.95
in-stock-product Availability: IN STOCK

Retail: Retail: $29.95

You Save: $10.00 (33.4%)


Quantity:
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Product Information

About This Item

  • Reduce your trigger pull from a stock ~4lbs to a modified ~2lbs  (Average results can vary up to +/- 1lb)
  • Enhance accuracy and overall rifle performance with nearly 55% trigger pull reduction!
  • The best Ruger 77 trigger job available!
  • Also compatible with Ruger 77/17, Ruger 77/22, Ruger 77/357, Ruger 77/44 and Ruger M77!
  • Compatible with Ruger 77/17, 77/22, 77/357, 77/44, and M77, functioning across all Ruger 77 models and calibers
    • Excluding models with Tang Safety like the Hawkeye model.
  • Manufactured using the 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!

WHAT'S IN THE KIT:

  • 1 - Custom Trigger Return/Sear Spring Replacement
  • 2 - .001" Bolt Shims
  • 2 - .002" Bolt Shims
  • 1 - Synthetic Grease w/ PTFE (teflon)
Description

Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Spring Kit

This trigger adjustment spring kit by M*CARBO is designed to work with a variety of Ruger 77 models, enhancing the overall trigger performance of your rifle. Note that this kit is not compatible with Ruger models equipped with a Tang Safety, such as the Hawkeye model.

The custom trigger return spring and sear spring in this kit allow for significant improvement in the trigger pull by adjusting two major components within the trigger assembly. Crafted with precision, the M*CARBO Ruger 77 Trigger Spring is made from the highest quality American Spring Steel - ASTM A228 Music Wire, ensuring a reliable and premium upgrade for your Ruger 77/22.

This versatile kit is compatible with all Ruger 77 calibers and variations, including Ruger 77/12, 77/22, 77/357, and 77/44. The upgrade is a valuable addition to your Ruger 77/22 accessories, delivering a noticeable difference in trigger feel and performance across various Ruger 77 models.

Included in the kit are Ruger 77 bolt shims – 2x .001" and 2x .002", offering a total of .006" potential adjustment. While it is likely that you won't require more than two shims, all four can be stacked together if necessary. These shims help in ensuring that the bolt is tightly secured against the breech and assist in addressing any manufacturing tolerances between the two major bolt pieces. By achieving optimal bolt tightness, the shims aid in preventing light strikes and misfires without affecting the actual headspace.

Upgrade your Ruger 77 with the best trigger job available, enhancing your rifle’s performance and accuracy right out of the box.

Ruger 77/22 Resources:

If you're getting the Ruger 77/22, 77/17, 77/357, 77/44 Trigger Spring Kit, then you might find the following Ruger 77 Resources useful in further enhancing your firearm. Download the Ruger 77/22, 77/17, 77/357, 77/44 Owners Manual.

Ruger 77/22 77/17 77/357 77/44 Owner's Manual
Ruger M77 Hawkeye Owner's Manual
Ruger 77/22, 77/17, 77/357, 77/44 Trigger Spring Kit Printable Instructions

M*CARBO No Hassle 100% Lifetime Guarantee:

The Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

Tested and Approved:

The Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is designed and manufactured by Combat Veterans. We will 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. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment 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.


Reviews
review-star review-star review-star review-star review-star
I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.
review-star review-star review-star review-star review-star
I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.
Improved trigger!
review-star review-star review-star review-star review-star
I have a Ruger 77 Hawkeye Compact in .308 Winchester. I ordered the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit. This was an improvement by all measures. My trigger pull prior measured on a Lyman Trigger Pull Gage averaged 4.2125 pounds. Adding the kit spring alone my trigger pull average was reduced to 3.087 pounds. A reduction of 1.1255 pounds! Sooo much better! The PTFE Superlube added to the sear seem to help too. I bought this after spending $91 on a Rifle Basix "drop in" trigger that was not a good fit and perhaps even, in my experience, unsafe. I reinstalled the factory trigger and added the M*Carbo Trigger kit. Problem solved.
Again I’m Carbo does it makes parts for an older Ruger 77/44 top quality parts trigger pole is awesome shims perfect
review-star review-star review-star review-star review-star
M carbo does it again great parts fast shipping for guns that need to be worked price awesome I just wish they carried more parts for different guns. I’d recommend these people to everybody. Thanks again may God bless you all.
Instant success
review-star review-star review-star review-star review-star
Anyone can tell you that Ruger m77/22 bolt bodies have plenty of manufacturing tolerance. This shim kit is absolutely perfect for getting everything dialed in. Mine took .003 worth of the shims. After 100 rounds of testing, I haven't had a single light primer strike (was getting about 5-6 per hundred before), and my 3 shot group size tightened up 3/8 of an inch on average to put them all well under MOA. The lighter weight trigger spring should have been factory. It feels fantastic in comparison. It shaved about 2lb off the pull weight. Thanks MCARBO for improving the quality of my life!
Trigger pull reduction
review-star review-star review-star review-star review-star
This kit addresses two of the several issues that the 77/22 and like models have .
These triggers from the factory are safe in design as no way to adjust pull weight or sear engagement period so being stuck with uneven surfaces tool marks ect on the trigger and sear as well as a full sear engagement some of these models might not see a huge improvement and some will mine was reduced by 12 oz and was very consistent in the measurements and by polishing the mating surfaces between sear and trigger and removing the rough finish I might have increased the surfaces touching each other causing the lack of reduction in pull weight that some have experienced.
With that said the kit does reduce pull weight.
In my experience with the wood stocked models the main issue with accuracy with these Rugers has been rifle bedding or lack of , if You doubt this assessment free float the barrel then You will quickly see this as all of the bedding is the barrel touching the barrel channel and no where else as the inletting for the action area is way to generous for the best accuracy
Easy install
review-star review-star review-star review-star review-star
I just finished installation of the trigger spring/shim kit in my Ruger 77/357. It went very well. Trigger pull was reduced by about 40% and the shim took out the sloppiness in the bolt. I’m very pleased. Easy to do and highly recommend.
review-star review-star review-star review-star review-star
I recently purchased a spring kit for my Ruger model 77/22. The package arrived just as advertised. I'd watched the video a few times and I followed the instructions and it went in just as shown. The only thing extra I'd bought was a 3/32 punch but the pin was not that difficult to remove. I didn't get the 2lbs reduction in pull weight that was in the video but it was enough of a reduction to enable me to get the best group I've ever been able to get with this rifle.
review image  
Questions & Answers
0 0
Question:
Sorry for the redundant question. I'm assuming the spring and shims in this kit will work with a M77 Mark II in .30-06 and 7mm Magnum? There is not a tang safety on the Mark II rifles... Thanks and Merry Christmas!
JFoster48386 December 24, 2023 10:14 PM
0 0
Question:
I have a Ruger M77 Hawkeye in 7mm-08. It is about 12-13 years old. It is left handed. Can you tell me which spring & shim kit I would need to get some better performance. My trigger currently breaks at 4lb 6oz. Thanks patrick.wdg@gmail.com
Patrick O'Rear November 28, 2023 8:50 AM
Answers
Hi Patrick, I just put the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit in my Ruger 77 Compact Hawkeye bought 8/24 /2014. I only needed the spring and I went from 4 pounds 3.4 oz to around 3 pounds. Do it!
Answered by
GeorgeDoe / December 16, 2023 6:38 AM
0 0
Question:
will this kit work in a Ruger M77 Mark II--. 223 caliber?
Sheila Peckham March 18, 2022 5:24 PM
Answers
As long as your firearm does not have a tang safety, this kit will fit and function safely for your model!
Answered by
Abby Marino / April 13, 2022 7:23 AM
0 0
Question:
I installed new trigger spring and .001 bolt shim. Put it back together and my trigger pull went from 4.8 lbs down to 3.55 lbs Was hopping for a lower trigger pull. Everything looks in place. Any suggestions?
Jay Green March 12, 2022 2:46 PM
Answers
We always recommend polishing up any contact surface areas to help smooth out the operation, this may help drop your trigger pull down a little further!
Answered by
Abby Marino / April 13, 2022 7:23 AM
0 0
Question:
Will this spring kit work on a Ruger M77 in 280 Remington?
December 24, 2021 4:17 PM
Answers
As long as your firearm does not have a tang safety, yes this kit will fit and function safely!
Answered by
Abby Marino / April 13, 2022 7:21 AM

About This Item

  • Reduce your trigger pull from a stock ~4lbs to a modified ~2lbs  (Average results can vary up to +/- 1lb)
  • Enhance accuracy and overall rifle performance with nearly 55% trigger pull reduction!
  • The best Ruger 77 trigger job available!
  • Also compatible with Ruger 77/17, Ruger 77/22, Ruger 77/357, Ruger 77/44 and Ruger M77!
  • Compatible with Ruger 77/17, 77/22, 77/357, 77/44, and M77, functioning across all Ruger 77 models and calibers
    • Excluding models with Tang Safety like the Hawkeye model.
  • Manufactured using the 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!

WHAT'S IN THE KIT:

  • 1 - Custom Trigger Return/Sear Spring Replacement
  • 2 - .001" Bolt Shims
  • 2 - .002" Bolt Shims
  • 1 - Synthetic Grease w/ PTFE (teflon)

Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Spring Kit

This trigger adjustment spring kit by M*CARBO is designed to work with a variety of Ruger 77 models, enhancing the overall trigger performance of your rifle. Note that this kit is not compatible with Ruger models equipped with a Tang Safety, such as the Hawkeye model.

The custom trigger return spring and sear spring in this kit allow for significant improvement in the trigger pull by adjusting two major components within the trigger assembly. Crafted with precision, the M*CARBO Ruger 77 Trigger Spring is made from the highest quality American Spring Steel - ASTM A228 Music Wire, ensuring a reliable and premium upgrade for your Ruger 77/22.

This versatile kit is compatible with all Ruger 77 calibers and variations, including Ruger 77/12, 77/22, 77/357, and 77/44. The upgrade is a valuable addition to your Ruger 77/22 accessories, delivering a noticeable difference in trigger feel and performance across various Ruger 77 models.

Included in the kit are Ruger 77 bolt shims – 2x .001" and 2x .002", offering a total of .006" potential adjustment. While it is likely that you won't require more than two shims, all four can be stacked together if necessary. These shims help in ensuring that the bolt is tightly secured against the breech and assist in addressing any manufacturing tolerances between the two major bolt pieces. By achieving optimal bolt tightness, the shims aid in preventing light strikes and misfires without affecting the actual headspace.

Upgrade your Ruger 77 with the best trigger job available, enhancing your rifle’s performance and accuracy right out of the box.

Ruger 77/22 Resources:

If you're getting the Ruger 77/22, 77/17, 77/357, 77/44 Trigger Spring Kit, then you might find the following Ruger 77 Resources useful in further enhancing your firearm. Download the Ruger 77/22, 77/17, 77/357, 77/44 Owners Manual.

Ruger 77/22 77/17 77/357 77/44 Owner's Manual
Ruger M77 Hawkeye Owner's Manual
Ruger 77/22, 77/17, 77/357, 77/44 Trigger Spring Kit Printable Instructions

M*CARBO No Hassle 100% Lifetime Guarantee:

The Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.

Drop Tested and Approved:

Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").

Tested and Approved:

The Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit has been tested repeatedly to ensure reliable operation and safety.

Veteran Owned and Operated Business:

American made Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit is designed and manufactured by Combat Veterans. We will 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. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment 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.


Product Reviews (140)
review-star review-star review-star review-star review-star
4.69
review-star review-star review-star review-star review-star
I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.
review-star review-star review-star review-star review-star
I just acquired a Ruger M 77 in 22 Hornet, the trigger pull was rough and consistently over 4#.Being somewhat frugal I found this online for $19.95+ shipping so gave it a try. After viewing their video,, installation was easy. Tigger pull is now just over 3#. Shipping was fast too.
Improved trigger!
review-star review-star review-star review-star review-star
I have a Ruger 77 Hawkeye Compact in .308 Winchester. I ordered the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit. This was an improvement by all measures. My trigger pull prior measured on a Lyman Trigger Pull Gage averaged 4.2125 pounds. Adding the kit spring alone my trigger pull average was reduced to 3.087 pounds. A reduction of 1.1255 pounds! Sooo much better! The PTFE Superlube added to the sear seem to help too. I bought this after spending $91 on a Rifle Basix "drop in" trigger that was not a good fit and perhaps even, in my experience, unsafe. I reinstalled the factory trigger and added the M*Carbo Trigger kit. Problem solved.
Again I’m Carbo does it makes parts for an older Ruger 77/44 top quality parts trigger pole is awesome shims perfect
review-star review-star review-star review-star review-star
M carbo does it again great parts fast shipping for guns that need to be worked price awesome I just wish they carried more parts for different guns. I’d recommend these people to everybody. Thanks again may God bless you all.
Instant success
review-star review-star review-star review-star review-star
Anyone can tell you that Ruger m77/22 bolt bodies have plenty of manufacturing tolerance. This shim kit is absolutely perfect for getting everything dialed in. Mine took .003 worth of the shims. After 100 rounds of testing, I haven't had a single light primer strike (was getting about 5-6 per hundred before), and my 3 shot group size tightened up 3/8 of an inch on average to put them all well under MOA. The lighter weight trigger spring should have been factory. It feels fantastic in comparison. It shaved about 2lb off the pull weight. Thanks MCARBO for improving the quality of my life!
Trigger pull reduction
review-star review-star review-star review-star review-star
This kit addresses two of the several issues that the 77/22 and like models have .
These triggers from the factory are safe in design as no way to adjust pull weight or sear engagement period so being stuck with uneven surfaces tool marks ect on the trigger and sear as well as a full sear engagement some of these models might not see a huge improvement and some will mine was reduced by 12 oz and was very consistent in the measurements and by polishing the mating surfaces between sear and trigger and removing the rough finish I might have increased the surfaces touching each other causing the lack of reduction in pull weight that some have experienced.
With that said the kit does reduce pull weight.
In my experience with the wood stocked models the main issue with accuracy with these Rugers has been rifle bedding or lack of , if You doubt this assessment free float the barrel then You will quickly see this as all of the bedding is the barrel touching the barrel channel and no where else as the inletting for the action area is way to generous for the best accuracy
Easy install
review-star review-star review-star review-star review-star
I just finished installation of the trigger spring/shim kit in my Ruger 77/357. It went very well. Trigger pull was reduced by about 40% and the shim took out the sloppiness in the bolt. I’m very pleased. Easy to do and highly recommend.
review-star review-star review-star review-star review-star
I recently purchased a spring kit for my Ruger model 77/22. The package arrived just as advertised. I'd watched the video a few times and I followed the instructions and it went in just as shown. The only thing extra I'd bought was a 3/32 punch but the pin was not that difficult to remove. I didn't get the 2lbs reduction in pull weight that was in the video but it was enough of a reduction to enable me to get the best group I've ever been able to get with this rifle.
review image  

Questions & Answers

5 Questions

0 0
Question:
Sorry for the redundant question. I'm assuming the spring and shims in this kit will work with a M77 Mark II in .30-06 and 7mm Magnum? There is not a tang safety on the Mark II rifles... Thanks and Merry Christmas!
JFoster48386 December 24, 2023 10:14 PM
0 0
Question:
I have a Ruger M77 Hawkeye in 7mm-08. It is about 12-13 years old. It is left handed. Can you tell me which spring & shim kit I would need to get some better performance. My trigger currently breaks at 4lb 6oz. Thanks patrick.wdg@gmail.com
Patrick O'Rear November 28, 2023 8:50 AM
Answers
0 0
Hi Patrick, I just put the Ruger 77/22 | 77/17 | 77/357 | 77/44 Trigger Adjustment Spring Kit in my Ruger 77 Compact Hawkeye bought 8/24 /2014. I only needed the spring and I went from 4 pounds 3.4 oz to around 3 pounds. Do it!
Answered by
GeorgeDoe / December 16, 2023 6:38 AM
0 0
Question:
will this kit work in a Ruger M77 Mark II--. 223 caliber?
Sheila Peckham March 18, 2022 5:24 PM
Answers
0 0
As long as your firearm does not have a tang safety, this kit will fit and function safely for your model!
Answered by
Abby Marino / April 13, 2022 7:23 AM
0 0
Question:
I installed new trigger spring and .001 bolt shim. Put it back together and my trigger pull went from 4.8 lbs down to 3.55 lbs Was hopping for a lower trigger pull. Everything looks in place. Any suggestions?
Jay Green March 12, 2022 2:46 PM
Answers
0 0
We always recommend polishing up any contact surface areas to help smooth out the operation, this may help drop your trigger pull down a little further!
Answered by
Abby Marino / April 13, 2022 7:23 AM
0 0
Question:
Will this spring kit work on a Ruger M77 in 280 Remington?
December 24, 2021 4:17 PM
Answers
0 0
As long as your firearm does not have a tang safety, yes this kit will fit and function safely!
Answered by
Abby Marino / April 13, 2022 7:21 AM