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(4.52) 153 reviews
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153 review(s)
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Product Information
About This Item
WHAT'S IN THE KIT: Installation Video
Description
S&W J Frame Trigger Spring Kit
Transform your S&W J Frame's hefty ~11-12lb trigger pull into a smoother, more refined ~8.5lb double-action trigger pull with M*CARBO's custom trigger job. Engineered for superior reliability and performance, this kit is a must for those seeking the best in their S&W J Frame.
NOT COMPATIBLE WITH RIMFIRE MODELS OR M&P BODYGUARD 38
Manufactured in America, the S&W J Frame Trigger Kit is crafted from the highest quality ASTM A228 Music Wire. Enhance your accuracy and achieve tighter groupings by optimizing your J Frame's trigger. Experience the difference firsthand and elevate your firearm's performance with our custom-made parts.
S&W J Frame Resources:
If you're getting the S&W J Frame Trigger Spring Kit,then you might find the following S&W J Frame Resources useful in further enhancing your firearm. Download the S&W J Frame Owners Manual or use the Exploded View of the S&W J Frame Parts Diagram to plan your next firearm project. Print or Download the S&W J FrameTrigger Spring Kit Instructions by MCARBO. Also use the Smith and Wesson J Frame serial number lookup to help identify the date of manufacture.
- Smith and Wesson Serial Number Date of Manufacture J Frame
The S&W J-Frame Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.
Tested and Approved:
The S&W J-Frame Trigger Spring Kit has been tested repeatedly to ensure reliable operation and safety.
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 S&W J-Frame 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.
Reviews
Write a review!
Worth Every Penny!
3/22/2024
I bought my fiance a S&W 38 Centennial J-frame and she loves it but struggles with the trigger pull. I was hesitant to attempt this trigger modification, although I'm fairly mechanical and built models as a youth. The video on their website was incredibly helpful and I simply watched each step, paused it and repeated it on my end. With proper tools like the bench block, shank tool and polishing kit, I was able to get this done in about 45 minutes. Just make sure you keep the parts organized during disassembly and don't misplace anything... oh, and don't overtighten during reassembly. I thought I had an issue with alignment while pulling the trigger before all of the housing screws were tightened, but once it was assembled correctly it's even smoother than before. My lady loves it now and feels even more confident shooting. Thanks M-Carbo... another great product!
Arch Stanton
WOW, what a difference.
3/19/2024
Installed the M*CARBO S&W J-frame trigger spring kit on my S&W model 642 J-frame. Install took about 1/2 an hour only because it was my 1st time working on a revolver. If you are familiar with working on revolvers, it could easily be done in 15 minutes. The youtube video is very informative and easy to follow.
Before the kit was installed I measured the trigger pull at about 12 lbs. on average after 5 pulls. After the install, I am averaging around 7 lbs. 3 oz. per pull. A reduction of 4.5 to 5 lbs.
I shot it for the first time today and WOW, it felt so much easier to shoot. The reduced trigger pull made it much easier to stay on target. I was plannig on taking it back apart and polishing all of the friction points and seeing how much of a difference that makes but I'm not sure it needs that after shooting it. I would recommend this kit to anyone with a J-frame.
Now I'm thinking about doing a M*CARBO trigger spring kit on one of my Glocks. If they are as smooth as the J-frame kit, I'll put one on each of my Glocks.
David from Arkansas
WOW, what a difference.
3/19/2024
Installed the M*CARBO S&W J-frame trigger spring kit on my S&W model 642 J-frame. Install took about 1/2 an hour only because it was my 1st time working on a revolver. If you are familiar with working on revolvers, it could easily be done in 15 minutes. The youtube video is very informative and easy to follow.
Before the kit was installed I measured the trigger pull at about 12 lbs. on average after 5 pulls. After the install, I am averaging around 7 lbs. 3 oz. per pull. A reduction of 4.5 to 5 lbs.
I shot it for the first time today and WOW, it felt so much easier to shoot. The reduced trigger pull made it much easier to stay on target. I was plannig on taking it back apart and polishing all of the friction points and seeing how much of a difference that makes but I'm not sure it needs that after shooting it. I would recommend this kit to anyone with a J-frame.
Now I'm thinking about doing a M*CARBO trigger spring kit on one of my Glocks. If they are as smooth as the J-frame kit, I'll put one on each of my Glocks.
David from Arkansas
Most Excellent
2/3/2024
Really great kit. I've never done anything more than clean and change the grips. MCARBO's video and kit took me through it—one shot. Really quite fun! The gun fires much more smoothly. Thanks gentlemen!
William Kuskin
Most Excellent
2/3/2024
Really great kit. I've never done anything more than clean and change the grips. MCARBO's video and kit took me through it—one shot. Really quite fun! The gun fires much more smoothly. Thanks gentlemen!
William Kuskin
Very Disappointing!
9/21/2023
Own numerous Smith revolvers and have performed spring replacements and trigger jobs on all of them. Using my trigger pull scale after finishing yielded minimal results. Should have went with Wolff!
easttennjed
accurate
9/5/2023
easy to install.lowered trigger pull by 4+ pounds on s&w 442 da only. much more manageable trigger pull
accurate
Trigger upgrade
8/7/2023
Parts were well packaged, video for removal/install great. Took 20 minutes!
JR Lorenzon
Questions & Answers
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0 0
Question:
Will this work with the sw shield plus?
David Dupre March 5, 2024 3:40 PM
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0 0
Question:
Is this capable with a 638-3
mctoomer February 15, 2024 6:56 AM
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0 0
Question:
Will this kit work on Taurus revolvers?
Gregory Hill November 11, 2023 12:00 PM
0 0
Question:
I have a mid-fifties Model 40. Will this kit work?
Richard Wood July 30, 2023 2:26 AM
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0 0
Question:
How does this do with light primer strikes? I have a 442-2. I've tried the Wilson combat spring kit and the tk customs spring kit and only had liable ignition with federal/ soft primers. Can this kit atleast work with magnum pistol primers?
JimmyBallog June 8, 2023 5:43 PM
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0 0
Question:
Will this work with model 15-4 .38 special Smith and Wesson?
AK64 May 30, 2023 9:33 PM
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0 0
Question:
I'm asking a previous question that is unanswered. Is this the same kit that was on youtube that reduced the pull on a 642 from 10lbs to 6lbs?
Robert Partington March 12, 2023 9:25 PM
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0 0
Question:
0 0
Question:
0 0
Question:
Is this the kit that you showed on YouTube to change the J frame from 10-pound pull to a 6-pound pull? I have a S&W 638. Thanks Kurt
KurtQVMWJPQH September 5, 2022 11:59 AM
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0 0
Question:
"Won't work on rim fires" BUT will it FIT in any J frame? I want to take the chance; no returns; I want to try one in a S&W 351 PD to see if it will fit or work?
Quigly56 January 20, 2022 10:47 AM
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0 0
Question:
0 0
Question:
0 0
Question:
0 0
Question:
0 0
Question:
I want to reduce the trigger pull. Will this kit to do that?
K9wardog November 11, 2021 5:12 PM
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About This Item
WHAT'S IN THE KIT: Installation Video
S&W J Frame Trigger Spring Kit
Transform your S&W J Frame's hefty ~11-12lb trigger pull into a smoother, more refined ~8.5lb double-action trigger pull with M*CARBO's custom trigger job. Engineered for superior reliability and performance, this kit is a must for those seeking the best in their S&W J Frame.
NOT COMPATIBLE WITH RIMFIRE MODELS OR M&P BODYGUARD 38
Manufactured in America, the S&W J Frame Trigger Kit is crafted from the highest quality ASTM A228 Music Wire. Enhance your accuracy and achieve tighter groupings by optimizing your J Frame's trigger. Experience the difference firsthand and elevate your firearm's performance with our custom-made parts.
S&W J Frame Resources:
If you're getting the S&W J Frame Trigger Spring Kit,then you might find the following S&W J Frame Resources useful in further enhancing your firearm. Download the S&W J Frame Owners Manual or use the Exploded View of the S&W J Frame Parts Diagram to plan your next firearm project. Print or Download the S&W J FrameTrigger Spring Kit Instructions by MCARBO. Also use the Smith and Wesson J Frame serial number lookup to help identify the date of manufacture.
- Smith and Wesson Serial Number Date of Manufacture J Frame
The S&W J-Frame Trigger Spring Kit is protected by the M*CARBO No Hassle 100% Lifetime Guarantee.
Tested and Approved:
The S&W J-Frame Trigger Spring Kit has been tested repeatedly to ensure reliable operation and safety.
Veteran Owned and Operated Business:
American made S&W J-Frame Trigger 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 S&W J-Frame 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.
Product Reviews (153)
4.52
See All Reviews
Write a review!
Worth Every Penny!
3/22/2024
I bought my fiance a S&W 38 Centennial J-frame and she loves it but struggles with the trigger pull. I was hesitant to attempt this trigger modification, although I'm fairly mechanical and built models as a youth. The video on their website was incredibly helpful and I simply watched each step, paused it and repeated it on my end. With proper tools like the bench block, shank tool and polishing kit, I was able to get this done in about 45 minutes. Just make sure you keep the parts organized during disassembly and don't misplace anything... oh, and don't overtighten during reassembly. I thought I had an issue with alignment while pulling the trigger before all of the housing screws were tightened, but once it was assembled correctly it's even smoother than before. My lady loves it now and feels even more confident shooting. Thanks M-Carbo... another great product!
Arch Stanton
WOW, what a difference.
3/19/2024
Installed the M*CARBO S&W J-frame trigger spring kit on my S&W model 642 J-frame. Install took about 1/2 an hour only because it was my 1st time working on a revolver. If you are familiar with working on revolvers, it could easily be done in 15 minutes. The youtube video is very informative and easy to follow.
Before the kit was installed I measured the trigger pull at about 12 lbs. on average after 5 pulls. After the install, I am averaging around 7 lbs. 3 oz. per pull. A reduction of 4.5 to 5 lbs.
I shot it for the first time today and WOW, it felt so much easier to shoot. The reduced trigger pull made it much easier to stay on target. I was plannig on taking it back apart and polishing all of the friction points and seeing how much of a difference that makes but I'm not sure it needs that after shooting it. I would recommend this kit to anyone with a J-frame.
Now I'm thinking about doing a M*CARBO trigger spring kit on one of my Glocks. If they are as smooth as the J-frame kit, I'll put one on each of my Glocks.
David from Arkansas
WOW, what a difference.
3/19/2024
Installed the M*CARBO S&W J-frame trigger spring kit on my S&W model 642 J-frame. Install took about 1/2 an hour only because it was my 1st time working on a revolver. If you are familiar with working on revolvers, it could easily be done in 15 minutes. The youtube video is very informative and easy to follow.
Before the kit was installed I measured the trigger pull at about 12 lbs. on average after 5 pulls. After the install, I am averaging around 7 lbs. 3 oz. per pull. A reduction of 4.5 to 5 lbs.
I shot it for the first time today and WOW, it felt so much easier to shoot. The reduced trigger pull made it much easier to stay on target. I was plannig on taking it back apart and polishing all of the friction points and seeing how much of a difference that makes but I'm not sure it needs that after shooting it. I would recommend this kit to anyone with a J-frame.
Now I'm thinking about doing a M*CARBO trigger spring kit on one of my Glocks. If they are as smooth as the J-frame kit, I'll put one on each of my Glocks.
David from Arkansas
Most Excellent
2/3/2024
Really great kit. I've never done anything more than clean and change the grips. MCARBO's video and kit took me through it—one shot. Really quite fun! The gun fires much more smoothly. Thanks gentlemen!
William Kuskin
Most Excellent
2/3/2024
Really great kit. I've never done anything more than clean and change the grips. MCARBO's video and kit took me through it—one shot. Really quite fun! The gun fires much more smoothly. Thanks gentlemen!
William Kuskin
Very Disappointing!
9/21/2023
Own numerous Smith revolvers and have performed spring replacements and trigger jobs on all of them. Using my trigger pull scale after finishing yielded minimal results. Should have went with Wolff!
easttennjed
accurate
9/5/2023
easy to install.lowered trigger pull by 4+ pounds on s&w 442 da only. much more manageable trigger pull
accurate
Trigger upgrade
8/7/2023
Parts were well packaged, video for removal/install great. Took 20 minutes!
JR Lorenzon
Questions & Answers
17 Questions
Login to ask a question.
0 0
Question:
Will this work with the sw shield plus?
David Dupre March 5, 2024 3:40 PM
Login to add an answer to this question.
0 0
Question:
Is this capable with a 638-3
mctoomer February 15, 2024 6:56 AM
Login to add an answer to this question.
0 0
Question:
Will this kit work on Taurus revolvers?
Gregory Hill November 11, 2023 12:00 PM
Login to add an answer to this question.
0 0
Question:
I have a mid-fifties Model 40. Will this kit work?
Richard Wood July 30, 2023 2:26 AM
Login to add an answer to this question.
0 0
Question:
How does this do with light primer strikes? I have a 442-2. I've tried the Wilson combat spring kit and the tk customs spring kit and only had liable ignition with federal/ soft primers. Can this kit atleast work with magnum pistol primers?
JimmyBallog June 8, 2023 5:43 PM
Login to add an answer to this question.
0 0
Question:
Will this work with model 15-4 .38 special Smith and Wesson?
AK64 May 30, 2023 9:33 PM
Login to add an answer to this question.
0 0
Question:
I'm asking a previous question that is unanswered. Is this the same kit that was on youtube that reduced the pull on a 642 from 10lbs to 6lbs?
Robert Partington March 12, 2023 9:25 PM
Login to add an answer to this question.
0 0
Question:
0 0
Question:
0 0
Question:
Is this the kit that you showed on YouTube to change the J frame from 10-pound pull to a 6-pound pull? I have a S&W 638. Thanks Kurt
KurtQVMWJPQH September 5, 2022 11:59 AM
Login to add an answer to this question.
0 0
Question:
"Won't work on rim fires" BUT will it FIT in any J frame? I want to take the chance; no returns; I want to try one in a S&W 351 PD to see if it will fit or work?
Quigly56 January 20, 2022 10:47 AM
Login to add an answer to this question.
0 0
Question:
0 0
Question:
0 0
Question:
0 0
Question:
0 0
Question:
I want to reduce the trigger pull. Will this kit to do that?
K9wardog November 11, 2021 5:12 PM
Login to add an answer to this question.
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