WHAT'S IN THE KIT:
- 1 - Reduced Power Trigger Rebound Spring
- 1 - Reduced Power Hammer Spring
- 1 - Reduced Power Cylinder Stop Spring
- 1 - Reduced Power Firing Pin Spring
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 Frame Trigger Spring Kit Instructions by MCARBO. Also use the Smith and Wesson J Frame serial number lookup to help identify the date of manufacture.
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.
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!
easy to install.lowered trigger pull by 4+ pounds on s&w 442 da only. much more manageable trigger pull
Parts were well packaged, video for removal/install great. Took 20 minutes!
Great Spring Kit
My trigger scale would error out because the trigger was so bad on my 80's Model 60. I installed this kit and brought the double action down to just under 9 lbs and the single to 2.5.
S&W J-Frame Trigger Spring Kit
I found the installation video and the quality of the springs to both be top notch. Thank you, M-CARBO!
Made a huge improvement. The Wheeler gauge only measures to 12 pounds and the factory triggers maxed the gauge every time. This is a major improvement in a firearm that simply by design is difficult to manage. Thank you M*CARBO for the good work.
The hammer spring was easy enough to change and has worked great. The trigger reset spring wasn't strong enough to insure a complete trigger reset every time I pulled the trigger. 1 out of every 5-8 wouldn't fully reset. I left the S&W trigger spring in place and just went with the hammer spring upgrade.
I did not use the other 2 springs due to some additional videos I viewed that didn't recommend the replacement based on difficulty and absolute improvement in operation of the firearm.
Will this kit work on Taurus revolvers?
I have a mid-fifties Model 40. Will this kit work?
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?
Will this work with model 15-4 .38 special Smith and Wesson?
AK64 May 30, 2023 9:33 PM
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?
This is our updated kit for the J-frame. So it will be similar to the old video on YouTube. This is the newer kit, which will work on the 642
Will this work with 637-2 .38 special+p Smith and Wesson
Will the kit work in a model 66?
It will not work with that particular model, the Model 66 is a K-Frame
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
"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?
We cannot advise that you install this spring kit in a rimfire model as the kit is not guaranteed through our safety testing.
Will the J frame spring kit work in a S&W 686
It wont work is a L-frame the 686
Does this fit smith and Wesson bodyguard .38 special
Sorry, no it won't work with the bodyguard
will this trigger spring kit work on a J-frame model 60 with a hammer
Yes this spring kit will work in all S&W J-frame models chambered in any centerfire caliber.
Will this work with a J-Frame Model 60 .357 w/hammer?
Yes this spring kit will work in your Model 60 J-Frame chambered in .357.
I want to reduce the trigger pull. Will this kit to do that?
will this trigger spring kit work on a 1980 J-frame model 36 with a hammer
Yes this spring kit will work in a model 36 with a hammer.