Spyderco Autonomy Spring Replacement Kit: Applicability and Insights
By Logan M. Fraser – Custom Knife Modder & Spyderco Parts Specialist, Based in Calgary, Alberta, Canada
This is the 10th blog of the Spyderco Knife blog series. You can check the other blogs I’ve written here: https://spymodz.com/blogs
Replacing the spring in an automatic knife isn’t something most users think about until it stops working. But if you own a Spyderco Autonomy, knowing how the Spring Replacement Kit works—and whether it fits your model—can save time and frustration.
As someone who’s serviced multiple Autonomy models, here’s a breakdown of what you should know before picking up a replacement kit.
What Is the Spyderco Autonomy? 🚀
Originally designed for rescue professionals and military use, the Spyderco Autonomy is an automatic knife built for one-handed deployment in the harshest conditions.
Key characteristics:
Push-button automatic deployment
Rustproof materials like LC200N or H-1
Fully ambidextrous design
Spyderco’s Autonomy 1 and Autonomy 2 are two distinct models, and spring compatibility is not universal.
Understanding the Spring Kit 🔄
Spyderco’s Spring Replacement Kit includes:
One or more coil springs
Spring cap or retainer
Instructions for safe installation
The spring drives the auto-open mechanism, and over time (especially with heavy use), it can weaken or break. The kit lets you restore functionality without replacing the entire knife.
Compatibility: Will It Fit My Autonomy? ❓
This is where many users get tripped up. The answer depends on which Autonomy model you have:
Autonomy 1 (Model C165GSOR)
Marine-grade rescue knife
Features button inlay, H-1 steel
Accepts Spyderco’s OEM Spring Replacement Kit with no modding required
Autonomy 2 (Model C165GP2, CPM LC200N)
More refined EDC design
Black handle, smoother profile
Uses a different spring assembly (usually requires a specific part number or factory support)
⚠️ Autonomy 1 and Autonomy 2 springs are not interchangeable. Always verify your model before purchasing parts.
How to Confirm Your Model 🔍
Check the blade steel: H-1 = Autonomy 1, LC200N = Autonomy 2
Handle material: Orange FRN = Autonomy 1, Black G10 = Autonomy 2
Look under the clip for the model number (e.g., C165GSOR)
Still not sure? Reach out via https://spyderco.com/contact-us/ for verification.
What If You’re Installing the Kit? 🤝
Here are my personal tips:
Use a controlled workspace—springs have a tendency to jump!
Wear safety glasses
Preload the spring carefully to avoid stripping the mechanism
Don’t over-lubricate—Spyderco recommends dry or light oil only
Installation generally takes about 15 minutes if you’ve done knife maintenance before. If not, consider reaching out to a modder or local technician.
Do You Sell Spring Kits at SpydercoParts.com? 🔧
Currently, we stock OEM-compatible parts for some models but not spring kits due to their mechanical risk and service liability. However, you can find screws, clips, and accessories compatible with the Autonomy line at https://spymodz.com.
If you’re not sure which screws or clips your model uses, feel free to contact me directly through the site—I personally verify each fit.
Helpful Resources 📄
https://spyderco.com: Official specs and part references
https://forum.spyderco.com: Great community feedback on repairs and performance
These are reliable sources to confirm compatibility or get user-tested solutions before you dive into repairs.
Final Thoughts 🔪
Spyderco’s Autonomy Spring Replacement Kit is a handy solution—but only if you get the right one for your model. Know the difference between Autonomy 1 and 2 before buying, and if in doubt, check your blade markings and materials first.
Have a question about spring replacements, Autonomy maintenance, or parts matching? Drop it in the comments below. And let me know what you’d like to see in next week’s Spyderco Knife Blog Series.