Eric Glesser Design, Ultralight Front-Flipper Performance

Building on the legacy of the Mantra series, the fourth-generation Mantra 4 is a sleek-stylish folding knife with an exceptionally refined front-flipper mechanism. In the closed position, a tiny sliver of the blade's tang stands proud above the spine of the handle. A stroke of the index finger against its textured surface propels the blade swiftly and reliably into the open position. Crafted from 8Cr13MoV stainless steel, the full-flat-ground blade is cloaked in a non-reflective black oxide coating and rides on low-friction ball bearing washers with butter-smooth action. The knife's open-backed handle is built with two contoured G-10 scales, one of which is machined to accept a nested stainless steel liner. The skeletonized liner forms the heart of the knife's sturdy liner lock mechanism and is thoughtfully textured for easy lock release. To balance discreet carry and immediate access, the Mantra 4 includes a low-profile deep-pocket wire clip that is reversible for left or right-side tip-up carry.

Product Dimensions

• Blade Length: 3.34" (85 mm)
• Cutting Edge: 3.15" (80 mm)
• Closed Length: 4.27" (108 mm)
• Overall Length: 7.50" (191 mm)
• Blade Thickness: 0.089" (2.2 mm)
• Weight: 1.90 oz (54 g)

Features

• Blade Material: Reliable 8Cr13MoV Stainless Steel delivering balanced edge holding, high toughness, and easy field re-sharpening
• Blade Finish: Non-reflective Black Oxide coating for low-profile tactical aesthetics and enhanced corrosion resistance
• Blade Style: Classic Leaf-Shaped profile with an ultra-thin full-flat grind engineered for high slicing efficiency
• Locking Mechanism: Secure Nested Liner Lock system built into a skeletonized stainless steel liner for clean handle ergonomics and solid lockup
• Handle Material: Lightweight Smooth Black G-10 scales contoured for a comfortable, sleek pocket profile
• Pivot & Deployment: Low-friction ball bearing washers for rapid opening via the discreet front-flipper tab
• Pocket Clip: Low-profile deep-pocket wire clip configured for tip-up transport (reversible for right/left carry)
• Designer: Eric Glesser
• Model Code: C274GBBKP
• Country of Origin: China
• Brand: Spyderco Knives