WHAT'S IN THE KIT:
- 1 - Custom Lighter 9.5lb Hammer Spring
- 1 - Custom Lighter 7.5lb Trigger Return Spring
- 4 - .005" Hammer Shims
- 4 - .001" Trigger Shims
Ruger SP101 / GP100 Trigger Spring Kit
Enhance your shooting experience with the M*CARBO Ruger SP101/GP100 Trigger Spring Kit!
The kit offers a significant reduction in trigger pull by approximately ~50%, enhancing the smoothness of each shot. It also eliminates side-to-side play in the hammer and trigger, ensuring stable and reliable performance. Designed with versatility in mind, the kit is suitable for all SP101/GP100 calibers, including .357 Mag, .38 Spl, .327 Mag, and .22LR. Moreover, it's constructed from the highest quality American Spring Steel ASTM A228 Music Wire and includes American 300 Series Stainless Steel Shims.
Discover the excellence of M*CARBO’s custom-designed accessories that promise to elevate both the accuracy and overall performance of your firearm. This versatile Trigger Spring Kit is not only a valuable addition for SP101 models but is also fully compatible with GP100 models.
Consider upgrading your firearm with the comprehensive Ruger SP101/GP100 Trigger Job bundled conveniently in this package. Placing a Custom Trigger Job at the top of your accessory list is a definitive step towards refined accuracy and enhanced performance. Experience a marked improvement in your shooting with the crisp trigger pull delivered by our top-quality, American-made Spring Kit.
Ruger SP101 Resources:
If you're getting the Ruger SP101/GP100 Trigger Spring Kit, then you might find the following Ruger SP101 Resources useful in further enhancing your firearm. Download the Ruger SP101/GP100 Manual or use the Exploded View of the Ruger SP101/GP100 Parts Diagram to plan your next firearm project. Print or Download the Ruger SP101/GP100 Trigger Spring Kit Instructions by MCARBO.
- Ruger SP101 Production Dates
Ruger GP100 Resources:
- Ruger GP100 Production Dates
Drop Tested and Approved:
Ruger SP101 / GP100 Trigger Spring Kit is drop Tested according to SAAMI Standard Z299.5 rating (12" & 48").
Tested and Approved:
The Ruger SP101 / GP100 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 Ruger SP101 / GP100 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.
Follow up - all set!
I emailed Customer Service, had a response the next day.
Looks like my GP100 might be slightly different, and I only need to trim one of the springs a bit.
Now I’m getting 9 lbs Double Action, 2 lbs, 12 oz single action. And it’s so smooth! Definitely a great upgrade.
Great improvement for the GP100 platform
I just finished installing this kit, and performing the full detail polishing. As usual, the video is great, and is perfect for maintenance even if you don’t change the parts. I had an issue getting the trigger to pull all the way, it wouldn’t. Lots of trial and error, finally out the factory trigger return spring back in. That resolved that issue. The trigger is much smoother, but both of the spring options included for this were too long and would not allow full trigger pull. The gauge says I’m not getting the proper weight reduction, but it still feels so much better. The shims worked great, and greatly improved fit. I’ll reach out to Customer Support to see if my S/N range is somehow different.
Ruger sp-101
Great product.
Detailed video walks you thru install.
No issues.
Dramatic difference in before & after.
Better than I hoped for
This kit smoothes out every aspect of the Ruger trigger. The shims helped more than I thought they would, and after 400+ rounds, the reliability of this kit has been proven for me. I have been bragging about this product and would gladly buy it again!!!
Ruger GP100 Trigger Spring Kit & Polishing
Before I purchased the GP100 Trigger Spring Kit I watched the video to make sure I could take my Ruger GP100 apart and put it back together and come away with a functioning firearm. As usual the video was excellent. I got the Trigger Spring Kit and followed the video with some missteps and cussing on my part. But when I was done I couldn't believe the difference. I started out with a trigger pull of 11.6lbs. DA and 4.2lbs. SA. I ended up with a trigger pull of 7.4lbs. DA and 2.4lbs. SA with an extremely smooth trigger pull. I would have never attempted this without the excellent video by Chris Nelson. This is by the far the most complicated disassembly/reassembly I have ever done. THANK YOU!!
Doug Ferris
Poughkeepsie, New York
Well put together kit, light primer strikes
I used this kit on an sp101 in 327. Trigger from factory was terrible and lots of slop in hammer and some in the trigger. Installation video was fantastic, did the buff and fluff of internals and installed the kit. Trigger was immensely improved and slop in action reduced. I feel that they went just a little to light on the springs. Trigger return is ok if a little spongy. Upon doing function check with live ammo, I had about five light primer strikes with standard primers out of about 150 rounds. I haven't checked with magnum primers but believe that I would have more due to increased hardness of the cups. I feel that an increase of between 1-2 pounds on the springs would make this perfect for carry without losing reliability.
SP101 spring kit
I bought a used SP101 in 327 Federal Magnum and was immediately disappointed with the trigger pull.
MCarbo to the rescue, their trigger kit was just what I needed. Great video for guidance and a great improvement
for this gun.
I have used several MCarbo parts and all have exceeded expectations. Thank you for your commitment to excellence.
GP100
Worked as advertised reduced my pull by about 50% by watching the video I was able to do the spring change and polish I would recommend this to everyone.
Any idea if this kit will work on the Security/Service 6 series? Thanks
Will the SP101 trigger spring kit work on my DA only spur-less hammer Ruger SP101?
Sp101 in .327, awful trigger (horribly manufactured), had gunsmith change to different brand springs, much lighter than the originals I think, now light hammer strikes on some factory and a lot of reloads.
Question 1) Will these springs work on SP101 in .327?
2) Any idea on reloads? Just as a note, my Ruger LCR in .327 has no issue with my reloads….
My 357 sp101 puts a good size dimple in every primer it’s hit with this kit, reloads and factory new.
Answered by
/
September 12, 2023 2:18 AM
Hi. Will this will work on the 9mm SP101 also?
Thanks
I have a GP100 in 44special. You are not showing that caliber. Will the .357 spring kit work?
January 24, 2022 11:12 AM
We have not tested our springs with that caliber so we cannot verify that you will see the same results with your model.
I see two trigger return springs in the Ruger GP101/100 trigger spring kit. I've looked in the printable instructions and watched the video but don't see anything about why .
September 12, 2021 3:04 PM
We found with testing and research that Ruger was inconsistent with which spring they used in different models, so we include two different options in our spring kit for you to use the one that fits better in your firearm!
The newer GP100s use a slightly shorter trigger return spring than older GPs. The SP101 uses the longer one.
Answered by
/
March 3, 2022 11:18 AM