Shirogorov Knives – SHI-URS-QNL-CB – Ursus Quantum – Folding Knife – Cromax PM Stonewash Upswept – Titanium Curly Birch Inlay – Grey Brown

The SHI-URS-QNL-CB (Curly Birch variant) is a refined iteration of the Ursus Quantum, designed for discerning collectors and everyday carry purists alike. This model harmonizes precision engineering, premium materials, and aesthetic accents to deliver both performance and visual appeal. The blade is crafted from Cromax PM stainless steel, chosen for its balance of edge retention, corrosion resistance, and toughness. The stonewashed finish provides a rugged, low-glare surface while minimizing the visual impact of wear and handling. A pronounced jimping on the spine further enhances grip and control during use. Opening and closing operate on a Multi-Row Bearing System (MRBS), offering ultra-smooth deployment and excellent lockup repeatability. The full-length titanium frame lock is reinforced by a steel lock bar insert to ensure secure, durable retention under load. The handle scales are titanium, finished in stonewash, and they incorporate Curly Birch inlays—a distinctive wood accent that adds elegance and uniqueness to each piece. Internally, the titanium handle is lightened via milling of the liners, reducing weight without sacrificing structural integrity. A satin-finish titanium back spacer (stand-off) cleanly bridges the halves. The hardware—including pivot screws and standoffs—is also stonewashed to match the knife’s overall aesthetic. For carry, a tip-up 3D-machined stonewashed titanium pocket clip—mounted with a hidden screw—provides discreet, secure right-handed carry. All in all, this model balances form and function with no compromises.

Key Specifications & Features:

Blade length: 3.74″

Overall length (open): 8.86″

Blade thickness: 0.134″

Steel: Cromax PM (stonewashed finish)

Opening system: MRBS (Multi-Row Bearing System)

Handle: Titanium frame lock, stonewashed finish

Inlays: Curly Birch wood inserts

Lock bar insert: Steel

Inner liners: Lightly milled for weight reduction

Back spacer / stand-off: Satin-finish titanium

Hardware and pivot screws: Stonewashed titanium

Pocket clip: Tip-up 3D-machined titanium (stonewash, hidden screw)

Weight: approximately 4.4 oz to 4.5 oz (varies slightly by configuration)

What’s more, you can experience this item for yourself by holding, smelling it or even taking a selfie with it in person at our local store, Sharp Things OKC, located at 6610 N. May Ave., Oklahoma City, OK 73116. Alternatively, you can purchase with confidence here online at www.SharpThings.com. You will experience world-class customer service in either environment. Don’t miss out on this exceptional product – add it to your cart and your collection today. Feel free to give us a call 7 days a week anytime between 9 AM and 9 PM. 405-286-2112 with any questions.