• Reduce your trigger pull from a stock 4lbs to a modified 2lbs (Average results can vary up to +/- 1lb)
  • Improve accuracy and overall rifle performance
  • Nearly 55% Trigger Pull Reduction!
  • Get the Best Ruger 77 Trigger Job!
  • Also compatible with Ruger 77/17, Ruger 77/22, Ruger 77/357, Ruger 77/44 and Ruger M77!
  • Functions in all Ruger 77 Models and Calibers, except models with Tang Safety such as the Hawkeye model.
  • 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 77/22 | 77/17 | 77/357 | 77/44 Trigger Spring Kit

  • Consists of a Ruger 77 Custom Trigger Return/Sear Spring Replacement
  • Ruger 77 Bolt Shims in .001" and .002"
  • Synthetic Grease w/ PTFE (teflon)

**Functions in all Ruger 77 Models and Calibers EXCEPT MODELS WITH TANG SAFETY such as the Hawkeye model.**

Ruger 77 Custom Trigger Return Spring / Sear Spring allows us to make a major difference in the trigger pull by effectively adjusting two major components at once inside the trigger assembly. The M*CARBO American Made - Custom Designed - Ruger 77 Trigger Spring is manufactured from the highest quality American Spring Steel - ASTM A228 Music Wire, to give you the Best Ruger 77/22 Trigger Adjustment on the market! 

Works for all Ruger 77 calibers and variations to include the Ruger 77/12, Ruger 77/22, Ruger 77/357, Ruger 77/44 and Ruger M77 Hawkeye Trigger Adjustment. One of the Must Have Ruger 77/22 accessories that is worth every penny when you feel your New Ruger 77/22 Trigger. This is your Ruger 77 44 Trigger Job and your Ruger 77 22 Trigger Adjustment since these factory springs are the exact same in both Ruger 77 Rifles.

    Ruger 77 Bolt Shims include 2x .001" and 2x .002" for a total of .006" potential adjustment. Most likely you won't use more than 2 of them but you can stack all 4 together if needed. The Bolt Shims will ensure the bolt is tight against the breech. As you've noticed, the bolt is in two major separate pieces. There is a bit of slop between the two parts due to natural manufacturing tolerances. As a way to ensure ultimate precision, we've developed this kit to assist you in ensuring that the 2 pieces of the bolt are tight against one another. The shims will also ensure that the bolt and breech are tight enough to prevent light strikes and misfires. The Ruger 77 Bolt Shims will not affect the actual head space as the head space is in the machined recessed face of the bolt.

    Get the Best Ruger 77 Trigger Job for your Ruger M 77 Trigger!

    It's the Best Ruger M 77 Trigger for a fraction of the cost of a complete drop in trigger, plus it will even work for the newer Ruger 77 17 Trigger or Ruger 77 22 Trigger. The Ruger 77 22 Trigger Job is the best way to increase your performance and accuracy right out of the box! Even one of the Best Ruger 77 357 Accessories on the market for the money! We can't leave out the Ruger 77 44 Trigger Job option that also comes with this Universal Ruger 77 Trigger Adjustment Kit! Ruger M77 Trigger and Ruger 77/22 Trigger Upgrade for the finest Ruger 77 Trigger Pull available!

    This Kit will fit the: Ruger M77, Ruger M 77 Mark II, Ruger 77/44, Ruger 77/357, Ruger 77/17, Ruger 77/22

    Will not fit the: Models with Tang Safety

    Ruger 77/22, 77/17, 77/357, 77/44 Rifle Owners Manual:

    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.

    M*CARBO No Hassle 100% Lifetime Guarantee:

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

    M*CARBO Lifetime Guarantee

    Drop Tested and Approved:

    M*CARBO ASTM Spec Springs will offer a perfect trigger pull reduction with an unlimited drop test rating (3", 6", 9" & 12"+).

    Range Tested and Approved:

    The Ruger 77/22, 77/17, 77/357, 77/44 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 77/22, 77/17, 77/357, 77/44 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 77/22, 77/17, 77/357, 77/44 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 the Ruger 77/22 Trigger Adjustment work in my Ruger M 77 Trigger?

    A: Yes this is the Ruger M77 Trigger Job as well.

    Q: Will your Ruger 77 357 Accessories also work for a Ruger 77 22 Trigger Adjustment?

    A: Yes it's a Ruger 77 22 Trigger Job and a Ruger 17 Trigger Job

    Q: Will the Ruger 77 Trigger Spring Kit work in my Ruger 77 44 Trigger?

    A: Yes it's a Ruger 77 44 Trigger Job

    Q: It's a Ruger 77/22 Trigger but will it work for my Ruger M 77 Trigger?

    A: Yes it will work for your Ruger M77 Trigger and your Ruger 77/44, Ruger 77/357, Ruger 77/17 and Ruger 77/22 Trigger and the Ruger M 77 Mark II

    Overall Customer Rating of 103 Reviews:

    Shims and trigger spring for 77/22 and 77/44.

    Excellent, installation on both was very simple.
    The trigger improvement was substantial, especially for the 77/44.
    Group improvement was good on both rifles.
    I would highly recommend you install this inexpensive yet effective solution to some Ruger 77/ series rifle accuracy problems.
    Am now looking at S & W and Ruger pistol upgrades.


    Very good product as advertised....I have these kits in two m77s great stuff

    Inexpensive improvement

    Kit was easy to install and greatly improves the trigger pull while the spacer kit makes chambering rounds smoother and more consistent


    Ruger M77/22 sear spring and shim kit

    I installed the sear spring in my trigger group and it dropped my trigger pull weight from 6lbs 6 oz down to 4 lbs 5 oz. it was reduced by 2 lbs making the trigger much lighter than it was which was a great improvement! Was hoping for an overall trigger pull weight of 3 lbs give or take. It does break much smoother now and I’m glad I did it. Installed both .002 shims in my bolt body/head and it definitely took a ton of play out of the bolt assembly. Now With the bolt closed I lost the rotational slop locked on an empty chamber. For a small investment of 19.95 and a super easy install it was definitely worth the endeavor. A Happy customer supporting an American Veteran company!!! Thanks MCarbo. Mike P

    Mike sr

    Easy install instantly refused trigger pull to a crisp 2lbs. Shims tightened group to . 750 from inch and a quarter.

    Number of questions: 0