Trivisa Firefly Ultra-Doom Mirror Finish M390 Blade Handcrafted Titanium Handle Crossbar Lock Folding Knife

The Trivisa Firefly Ultra-Doom folding knife pairs a mirror-finished M390 blade with a handcrafted titanium handle for a refined, compact everyday carry design. Created by the TRIVISA Team, it features a swedge blade profile and a crossbar lock for secure handling. Ceramic ball bearings support smooth opening, while the blade is rated at 60±2 HRC. Measuring 6.69 inches overall, the knife has a 2.99-inch blade and a 3.7-inch closed length. Its slim 0.13-inch blade thickness and lightweight 2.96-ounce build make it easy to carry on outdoor outings. Suitable for everyday use and activities such as hiking, camping, fishing, and hunting, the Firefly brings thoughtful materials and practical dimensions together in a distinctive folding knife.

M390 Blade Introduction

M390 is an advanced powder-metallurgical stainless steel utilizing high chromium and vanadium content to deliver exceptional wear resistance and industry-leading corrosion resilience. It excels at retaining a razor-sharp edge under prolonged use; however, this extreme hardness renders the blade notably difficult to sharpen or reprofile without diamond abrasives. Additionally, its fine microstructure, while offering superior edge stability, sacrifices some structural toughness and may be more prone to chipping under heavy lateral stress.

Specification

Designer:TRIVISA Team
Style:Swedge
Blade Material: Titanium Blade
Blade Finished: Mirror Finish
Handle Material:Titanium Handle
Lock Style:Crossbar Lock
Hardness:60±2HRC
Bearing:Ceramic Ball Bearing

Size:
Overall length-6.69"(171mm)
Blade length-2.99"(76mm)
Closed length-3.7"(95mm)
Blade width-0.9''(23mm)
Blade thickness-0.13''(3mm)
Net Weight:2.96oz(84g)

Usage:Outdoor survival,EDC,hunting,fishing, hiking and camping