WHAT'S IN THE KIT:
- Reduced Power Trigger Rebound Spring
- Reduced Power Hammer Spring
- Reduced Power Cylinder Stop Spring
- Reduced Power Firing Pin Spring
S&W J Frame Trigger Spring Kit
Reduce your S&W J Frame Heavy 11-12lb Trigger pull to a smoother cleaner 8.5lb double action trigger pull! Custom S&W J Frame Trigger Job by M*CARBO to guarantee the most reliable performance over any other S&W J Frame Trigger Job.
**WILL NOT WORK WITH RIMFIRE MODELS OR M&P BODYGUARD 38**
S&W J Frame Trigger Kit is made of the Highest quality ASTM A228 Music Wire right here in America! The S&W J Frame Trigger Kit will improve your accuracy and tighten your groupings. If you're looking for S&W J Frame Accessories then you need to do a S&W J Frame Trigger Job and Feel the difference yourself! Custom manufactured Smith and Wesson J Frame Parts for superior performance! Watch the Smith and Wesson J Frame disassembly and re-assembly installation video by M*CARBO for easy installation. Custom S&W J Frame Spring Kit for Unmatched Results and Performance!
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.
Awesome product! I highly recommend
This is a great upgrade. I bought a used 642 for $170 bucks! Couldn’t beat it. I got a new pistol grip and got this spring kit so my wife could shoot it. It was a simple gift for her.
The original pull was about 11.5 lbs and installing this kit brought the pull to just over 8 lbs. About a 30% reduction, maybe a hair more on some pulls. It’s a very crisp and clean trigger pull now.
The video on this page is spot on. My wife and I just watched the video, paused at intervals and did the work together. Great job on the video.
I’ll be back for more from MCARBO as the need/want arises.
A bonus: They mean it when they said they fulfill orders quick. And the actual shipping was only a couple of days thanks to the service provider.
Tried others..this kit rocks! (or doesn't 😂)
OK. S&W Lady Smith J Frame 642-2.
OEM pull was a billion lbs. Seriously, my wife could not hold the gun with two hands and keep the muzzle still. For that matter neither could I! Installed a competitors kit which helped a bit but did result in a few dry fires and still the gun was hard to steady while firing.
Enter the MCARBO Kit! Wow! Wife can one hand the gun now with little muzzle movement and with 2 hands nine! In other words, she is hitting center mass either way! Amazing how nice the gun feels now and has regained its place next to her at night.
The install video is how all instructional videos should be done and is a very straightforward install.
Well done Brotherhood!
I only installed two springs from this kit and it made a big difference. I don’t have a trigger pull gauge but it is definitely better. I did the install myself and it was quick and easy.
My results were almost exactly in line with what they advertise. Installed this kit on a S&W Model 60-10. Before installation, DA pull was 11.5 lbs, SA was 2.5. After installation, DA is 8.5, SA is slightly under 2. The trigger feels great. Installation was fairly easy following the video instructions.
J Frame Spring Kit
I just installed the spring kit in my model 37. The double went from 12 to 9 lbs. The single action went from 3 to around 2 lbs. Very happy with this kit.
Lightening the trigger pull is one of the easiest ways to improve your accuracy, and this took less than 10 minutes on my kitchen table. This review is from a gun-owning liberal (yes, we exist!)
I bought my Model 36 many years ago(for 239 dollars) and I never liked the trigger pull in double action mode. And single action is too dangerous. I passed this gun on to replace a glock in my family BUT..... same horrible trigger pull. Then I read that the trigger pull has always been hated by model 36 owners. I saw the website for Mcarbo but more importantly watched the video(several times). The video is well-done and easy to follow so the new springs along with hogue grips and Norma self-defense ammo now make for a perfect conceal/carry weapon.
J Frame Spring kit
Have two J Frame S&Ws, and swapped out the Hammer Springs. Need to get a tool to swap the Trigger Return Springs, but already seen a better DA trigger pull. In SA, the difference is even more noticeable. Please note that a Roll Pin Punch (with a centering dimple) doesn't work if you try to use it to swap the Trigger Return Spring.
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