Black BIKER USA four-finger multi-functional portable EDC tool, featuring skull and motorcycle style design, paired with a black nylon carry pouch.

BIKER USA black multi-functional portable tool (with carry pouch), showing skull pattern, four-finger grip design, and included tools, suitable for outdoor or travel emergency use.

An open black folding knuckle knife featuring a silver blade with a groove, an embossed skull and motorcycle design, and "BIKER USA" text, displayed on a textured grid surface.

A close-up of a silver folding knife blade showing a central groove and a brushed metal finish, displayed on a textured dark background.

A close-up of a black knuckle duster folding knife handle, featuring an embossed skull, motorcycle design, and "BIKER USA" lettering, displayed on a carbon fiber textured background.

A close-up of the threaded glass breaker tip on a black knuckle duster folding knife, held by a hand, displayed on a carbon fiber background.

A black knuckle duster folding knife with a silver blade, featuring an embossed skull and motorcycle design with the text "BIKER USA", displayed with a metal ruler on a dark textured background for size reference.

A view of the backside of a black knuckle duster folding knife, showing the textured inner holes of the knuckle guard and a black blade, on a carbon fiber background.

An open black knuckle duster folding knife displayed with its black nylon carrying sheath and black presentation box, resting on a carbon fiber textured background.

AS-X Motorcycle EDC Knife – Spring-Assisted, Knuckle Handle, 311g

🎉 5% OFF Orders Over $60

$64.99 ~~$0.00~~ /

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AS-X Motorcycle EDC Knife – Spring-Assisted, Knuckle Handle, 311g

Remind customers of offers like free shipping and lifetime warranties.

Slide your fingers through the rings. Feel the machine come alive.

Four fingers curl through the zinc alloy knuckle handle, and suddenly the AS-X isn't just a knife—it's an extension of your grip. Cold metal presses against your skin, textured and solid. At 311 grams, the weight fills your palm with a density that says engineered, not assembled. This isn't a featherweight toy. It's a mechanical presence.

Your thumb finds the side button. A press, a breath—and the spring-assisted mechanism wakes. The 440C steel blade swings out with a smooth, dampened authority, locking into place with a crisp click you can feel through the frame. No struggle. No hesitation. Just a structured, mechanical action that rewards your hand every single time. Close it manually, feel the liner lock disengage, and the blade folds back into its industrial shell, ready for the next deployment.

Look at the details. The matte black finish swallows light, while the retro skull and motorcycle engravings whisper stories of open roads and midnight garages. "BIKER USA"—not a boast, but a nod to a culture built on steel, grease, and independence. At the rear, the integrated glass breaker waits silently. You might never need it. But on that one night, in that one moment, you'll feel its cold, pointed tip against your palm and know you're carrying more than just a knife.

This is the AS-X. For the rider who wants their EDC to match their machine. For the collector who appreciates mechanical theater. For the person who believes a tool should have character—not just function.