Overview & First Impressions
The GEO Knife Cirex GEO2601 is the largest blade in the brand's debut M390 family at 3.5 inches, and it makes a good case study for why the crossbar lock has become so popular. Two trims are available, both using G10 handles and titanium hardware around a stonewash M390 blade. At 83.5 grams it remains genuinely light, and the ambidextrous design means it works equally well in either hand.
Materials & Construction
M390 from Bohler is a powder metallurgy stainless steel whose reputation rests on exceptional edge retention paired with strong corrosion resistance. Because the carbides are fine rather than clustered, the steel does not crumble at the edge the way some high-vanadium alloys do, and it accepts a refined edge without endless grinding. The G10 handle is a fibreglass composite, impervious to moisture and temperature, and effectively indestructible in normal carry.
Design & Details
The crossbar lock engages the blade tang with a spring-loaded bar that you pull back with thumb and forefinger. That geometry matters for three reasons. It is fully ambidextrous, it keeps fingers out of the blade path when closing, and it holds the blade closed with spring tension rather than relying on a detent alone. Add a stonewash finish and a well-chamfered G10 scale and you have a design that prioritises safe, repeatable operation.
Real-World Use
Using the Cirex daily is undramatic in the best sense. The 3.5 inch blade covers food preparation, packaging, cordage and garden tasks, and the crossbar lock means you can open and close it with one hand while the other hand holds what you are working on. G10 does not get slippery when wet, which matters more than most reviews admit. Titanium hardware keeps the weight down without introducing a corrosion point.
Ownership Notes
Crossbar locks need less maintenance than people assume. Keep the mechanism dry and clean, apply a small amount of light lubricant sparingly, and flush it with compressed air if it ever feels gritty. M390 benefits from diamond abrasives at a consistent angle and holds an edge for a long time, so a strop is usually enough between sessions. Wipe the blade after acidic food contact and the stonewash finish will keep looking new for years. Anyone comparing EDC knives will find the Cirex sits in the same size class as most folding knives intended for daily work, which is exactly where it belongs.
Who Is This For?
The Cirex suits anyone who wants a mid-size folding knife with modern mechanics, premium steel and an ambidextrous action. It is a strong choice for left-handed users, for people who work in environments where one-handed closing matters, and for collectors following GEO Knife from its first release. Buyers who prefer a traditional back lock or a heavier duty tool should look at a different model.
Final Verdict
GEO Knife has made the crossbar lock accessible at a reasonable price without cutting the steel specification, and the Cirex is the most versatile blade in the family. If you have never used a crossbar folder, this is a sensible and affordable place to start, and if you already own several, the M390 and titanium hardware still justify the purchase.
