Mac Coltellerie Gunster Fixed Blade Diving Knife Black FRN (4.25" Satin FS)

This Knife

• Blade: Double-edged dagger blade made from MA5 steel with a fully serrated edge.
• Handle: Black FRN handle with shackle unlocker, end cap hammer, and lanyard hole.
• Carry: Lightweight plastic carry sheath.

Mac Coltellerie Gunster

Engineered for serious divers who demand both innovation and reliability, the Mac Coltellerie Gunster Diving Knife—designed by Moris Baroni—redefines what a modern dive tool can be. Every element of the Gunster has been purpose-built to enhance safety, versatility, and performance beneath the surface.

At its core is a striking double-edged dagger blade crafted from MA5 steel, a high-performance alloy known for its excellent corrosion resistance, edge retention, and durability in harsh marine environments. Whether you’re cutting through rope, netting, or debris, the Gunster gives you options: one edge is fully serrated for aggressive slicing, while the other offers a clean, non-serrated edge for precision work.

The handle is where the Gunster truly sets itself apart. Thoughtfully designed for real-world diving scenarios, it incorporates a built-in shackle unlocker for dealing with tight or jammed hardware, an end-cap hammer for impact tasks, and a lanyard hole for secure retention when conditions get unpredictable. The ergonomic grip ensures confident handling even with gloves or in low-visibility conditions.

When not in use, the blade rests securely in a lightweight polymer sheath designed for quick access and dependable retention. Versatility continues with multiple carry options: mount it on your belt, or attach it to your leg or arm using the included straps for easy reach exactly where you need it.

Distinctive, functional, and built with purpose, the Gunster Diving Knife is more than just a cutting tool—it’s a critical companion for divers who expect their gear to perform without compromise.