Spyderco Police 4 Lightweight K390 Review: A Premium EDC Blade

 

The Spyderco Police 4 Lightweight K390 is a fan-favorite EDC knife known for its premium K390 steel blade. In this review, we’ll dive into its design, performance, and whether it’s worth the investment for knife enthusiasts. Learn more about K390 steel in our K390 Steel Knife Review.

Spyderco Police 4 Overview

• Blade: 4.38-inch full-flat-ground blade in K390 steel at 64 HRC.
• Handle: Lightweight blue FRN (fiberglass-reinforced nylon) scales.
• Lock: Reliable back lock.
• Weight: 4.2 ounces with a reversible clip.

Performance and Testing

The Police 4 excels in cutting tasks—slicing cardboard, prepping food, or tackling campsite chores. K390’s edge retention (see here) keeps it sharp for weeks, though it requires rust prevention. Its ergonomic handle ensures comfort during extended use.

Pros

• Exceptional edge retention with K390 steel.
• Lightweight and easy to carry.
• Smooth deployment and solid lockup.

Cons

• K390 isn’t stainless—needs care in wet conditions.
• Premium price point.

Who Is It For?

Perfect for EDC users, campers, or collectors who want a high-performance blade and don’t mind a little maintenance. Compare its steel to S30V or M4 for other options.

Where to Buy

Get the Spyderco Police 4 Lightweight K390 on Amazon. Click here to support this blog (affiliate link).

Final Verdict

The Spyderco Police 4 K390 is a top-tier EDC knife with unmatched cutting performance. It’s a worthy investment if you value sharpness over low maintenance. Share your thoughts below!