The Shirogorov RKMP is a high-performance collaboration between the Shirogorov Brothers Workshop and renowned custom maker Charles Marlowe. This limited-edition piece (one of only 150) merges Marlowe’s “animalistic” design language with Shirogorov’s world-class engineering and the latest in high-end metallurgy.
Cutting-Edge Blade Steel: Bohler M398
The standout feature of this build is the M398 Microclean blade. M398 is the extreme evolution of the popular M390, specifically engineered for maximum wear resistance.
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Composition: With a significantly higher vanadium and carbon content than its predecessor, M398 offers approximately 30% more carbide volume, resulting in elite edge retention that ranks among the highest in the knife industry.
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Finish: The blade features stonewashed and satin polished flats, providing a refined two-tone aesthetic that highlights the complex Marlowe grinds.
Mechanical Mastery: SRRBS
While most high-end folders use ball bearings, this RKMP runs on the SRRBS (Single-Row Roller Bearing System).
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Contact Surface: Unlike spheres, the cylindrical rollers provide a linear contact point with the raceway. This significantly increases stability and prevents the “marring” of the titanium frame over time.
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Action: The result is a silky, hydraulic deployment that feels incredibly solid and reliable, typical of Shirogorov’s Custom Division-level builds.
Frame and Ergonomics
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Chassis: The Titanium frame lock handle features a fine textured milling pattern for enhanced grip without being overly abrasive.
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Weight Management: To maintain its nimble 3.6-ounce weight, the handle scales feature internal milled pockets, providing a balanced feel for a knife with an 8.00″ overall length.
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Aesthetics: The Blue anodized accents on the stonewashed titanium backspacer add a subtle pop of color to the otherwise tactical, monochromatic frame.
Collector’s Set
This piece is Brand New and includes the complete provenance required for a high-value collector’s item:
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Original Box and Shirogorov Bear-logo Cloth
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Individually numbered COA (Certificate of Authenticity) card
