Skip to Content
Cubist Geometry Quick-Deploy OTF Knife - Midnight Black

Price:

$ 36.99


Prism Pulse Front-Switch OTF Knife - Rainbow Damascus
Prism Pulse Front-Switch OTF Knife - Rainbow Damascus
$ 39.99 $ 39.99
Stealth Bloom Slide-Action OTF Knife - Pink Aluminum
Stealth Bloom Slide-Action OTF Knife - Pink Aluminum
$ 31.99 $ 31.99

Cubist Geometry Quick-Deploy OTF Knife - Midnight Black

https://www.southsummit.com/web/image/product.template/1571/image_1920?unique=1c9a210

You’re already picturing it: thumb on the slide, that clean OTF snap, and suddenly there’s no hesitation between you and the task. This automatic OTF knife rides deep, blacked-out and quiet, until the moment you need control in your hand. The geometric handle locks into your grip, the American tanto edge and serrations bite into real work, and you walk out the door knowing you didn’t just grab a blade—you chose your everyday advantage.

$ 36.99 36.99 USD $ 36.99

SB123BKTS

Not Available For Sale


  • Blade Length (inches)
  • Overall Length (inches)
  • Closed Length (inches)
  • Weight (oz.)
  • Blade Color
  • Blade Finish
  • Blade Style
  • Blade Edge
  • Blade Material
  • Handle Finish
  • Handle Material
  • Button Type
  • Theme
  • Double/Single Action
  • Pocket Clip
  • Sheath/Holster

This combination does not exist.

Blade Length (inches) 3.5
Overall Length (inches) 9
Closed Length (inches) 5.5
Weight (oz.) 7.9
Blade Color Black
Blade Finish Matte
Blade Style American Tanto
Blade Edge Partial-Serrated
Blade Material Steel
Handle Finish Matte
Handle Material Aluminum
Button Type Slide
Theme None
Double/Single Action Single
Pocket Clip Yes
Sheath/Holster Deluxe Sheath
Guides: OTF knives explained

You May Also Like These

You feel it most on the nights you leave late. Parking lot mostly empty, keys in one hand, phone dead, mind replaying the day. Your other hand brushes your pocket and finds something solid, familiar. A smooth matte rectangle, all straight lines and quiet weight. Thumb finds the slide. You don’t even have to look. The OTF knife snaps out with that fast, final click that tells your brain: you’re not walking alone.

When an OTF knife turns hesitation into muscle memory

This isn’t about owning a cool gadget. It’s about shaving seconds off the moment between “I should do something” and actually doing it. With a quick-deploy OTF knife, you’re no longer fumbling for a nail nick or trying to find the right angle on a thumb stud. Your thumb rides that side slide switch, and with a single, committed push, the blade rockets straight out the front and locks. Clean. Predictable. No wasted movement.

That’s what changes your daily carry. Grocery runs. Late shifts. Trailheads at sunrise. You know that if you need a blade—whether it’s for cutting strapping, breaking down boxes, slicing cord, or having something authoritative in your hand in a sketchy moment—it’s there in under a second. Not because you’re some movie character, but because you’ve trained your thumb to trust this motion.

Why this OTF knife feels like it was built for your hand

The first time you wrap your fingers around the handle, you notice the geometry before you even see it. Raised cubist texture, matte black aluminum, edges and facets that give your grip a place to lock in. It doesn’t try to be pretty; it tries to stay put when your palms are sweaty, gloved, or cold. That’s the design story here: all those sharp visual lines translate into real traction.

At 5.5 inches closed with a 3.5-inch blade, it fills the hand without feeling like a brick. 7.9 ounces gives you that reassuring weight—enough to feel substantial in your pocket, not enough to drag your waistband down. You feel the balance when the American tanto tip clears the handle: no wobble, no rattle, just a straight-line extension of your intent.

The blade your daily carry has been missing

The blade is where the modern tactical side of this OTF knife really shows. Blacked-out, matte finish, American tanto profile with a strong, reinforced tip. You get a long, straight primary edge for clean push cuts and a secondary angle that wants to pierce confidently—packages, strap, plastic clamshells, even light prying when you have to abuse it a little.

Partial serrations near the handle chew through rope, webbing, and stubborn material without you sawing all day. Straight edge up front for precision, serrations in back for power—that’s how you stop carrying two knives "just in case." Steel construction means you can sharpen it back up when you’ve worked it hard, instead of babying it like some shelf queen.

How this OTF knife disappears—until the second you need it

Everyday carry isn’t about owning a drawer full of blades. It’s about the one you actually clip on every single morning without thinking. This OTF knife was built to live there: spine-side pocket clip to ride low, all-black hardware that doesn’t scream for attention, and a slim, straight profile that doesn’t fight your keys or wallet.

Slide it into your front pocket, or mount it on your belt with the included deluxe sheath when you want a more deliberate carry. The pointed pommel at the end quietly doubles as a glass breaker—nice to know in the back of your mind every time you drive past that same stretch of highway or park near that same river. You’ll rarely think about it, but you’ll know it’s there.

Carry comfort you stop noticing (and that’s the point)

The best everyday carry knife is the one that doesn’t nag you. No weird hot spots from sharp corners. No clip digging into your palm when you deploy it. The geometry on this handle isn’t just for looks; those facets give your fingers natural lanes, so you don’t have to shift grip mid-cut. In a hammer grip, saber grip, or reverse, your hand finds home without you overthinking it.

When an OTF knife gives you more than just a cutting edge

There’s a reason so many tactical and EDC people eventually land on an automatic out-the-front as their confidence blade. It’s not about showing off the mechanism—it’s about how it feels to know your knife isn’t buried in your pocket when something goes sideways. You don’t have to stage it beforehand. You don’t have to open it two-handed. One thumb. One line of motion. Locked.

Picture yourself on a roadside shoulder at dusk, trying to cut a stubborn seatbelt or strap in the wind. Or working in a warehouse when a pallet wrap decides it’s not going quietly. Or hiking when you need to cut cord with one hand because the other is stabilizing you on a slope. In those moments, having a fast-deploy tactical pocket knife isn’t about looking tactical—it’s about not losing time to a fussy mechanism.

Questions people ask before buying an OTF knife

Is an OTF knife good for everyday carry, or is it just tactical?

If you actually use your blade, an OTF knife makes a lot of sense for everyday carry. You get fast, one-handed deployment and secure lock-up, plus a compact footprint in the pocket. This one gives you tactical confidence without turning into an overbuilt showpiece you’re afraid to scratch.

Will this OTF knife hold up to real daily use?

Yes—this isn’t a display toy. The steel tanto blade, partial serrations, and aluminum handle are built for cutting cord, breaking down boxes, trimming plastic, and handling the ugly jobs you actually face. The glass-breaker pommel and solid slide mechanism mean this automatic knife is ready for both routine tasks and "I didn’t plan for this" moments.

Is carrying an automatic OTF knife legal where I live?

Laws for automatic and OTF knives vary a lot by state, city, and even county. Before you make this your everyday carry blade, it’s smart to check your local knife laws or ask a local shop. If you ever travel, remember that what’s legal at home may not be legal across a border or in certain buildings.

How safe is the slide mechanism on an OTF knife?

With a single-action OTF knife like this, the slide does one job: launch the blade forward and lock it. It takes a deliberate push, not an accidental bump, so it’s not going to fire in your pocket from casual contact. As with any automatic knife, keeping the slide clean and free of pocket lint keeps deployment positive and reliable.

Owning an OTF knife that matches the way you move through the world

Fast-forward a week or two. The newness has worn off. The matte black handle already has a couple of tiny marks from real use. The blade’s done its time on cardboard, plastic, cord, and maybe one or two "I probably shouldn’t use a knife for this" tasks. You’ve sharpened it once. You’ve cycled the slide more times than you’d admit out loud. And now, when you pat your pocket on the way out the door, you don’t think "knife." You think, "I’m ready."

That’s what this OTF knife really gives you. Not just a clean snap, a geometric handle, or a blacked-out tanto. It gives you a quiet, private sense that you’ve thought one step ahead. That you’re the kind of person who doesn’t wait for someone else to be prepared. You thumb the slide, feel that familiar kick and lock, and for a split second everything lines up: your hand, your gear, and the way you want to move through your life—decisive, capable, and already in control.