An open 1918 U.S. style knuckle duster OTF knife with a black handle and silver blade, displayed on a dark background.

An open 1918 U.S. style knuckle duster OTF knife with a black handle and silver blade, displayed on a white background.

An open black 1918 U.S. knuckle duster OTF knife resting on its black nylon sheath, displayed on a dark grid background.

A close-up of a closed black knuckle duster OTF knife, showing the engraved "1918 U.S." text and screw details on a dark grid background.

The back side of a closed black 1918 U.S. knuckle duster OTF knife, showing the silver pocket clip and glass breaker on a grid background.

A side view of a closed black OTF knife with a knuckle duster handle, highlighting the side-mounted firing button and glass breaker tip on a grid background.

A hand holding an open 1918 U.S. style black knuckle duster OTF knife with a silver tanto blade, displayed on a dark grid background.

A close-up of the silver tanto blade of a 1918 U.S. OTF knife, showing the central groove and sharp tip on a dark grid background.

A close-up of the threaded glass breaker tip on the handle of a black 1918 U.S. knuckle duster OTF knife, displayed on a dark grid background.

The back side of a closed black 1918 U.S. knuckle duster OTF knife, showing the silver pocket clip and four finger holes on a dark grid background.

An open 1918 U.S. style black knuckle duster OTF knife with a silver blade, showing the silver pocket clip on the back of the handle, displayed on a dark grid background.

1918 U.S. Trench Knife – Knuckle Auto Knife, 440C Blade & Glass Breaker

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AS : AS-Y

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1918 U.S. Trench Knife – Knuckle Auto Knife, 440C Blade & Glass Breaker

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The 1918 U.S. Tactical Knuckle Automatic Knife pays tribute to the iconic 1918 trench knife while integrating modern automatic knife technology. It is a collectible homage to military history and a reliable tactical tool for self-defense and emergency situations.

⚔️ Classic 1918 Trench Knife Design:

Handle engraving: “1918-U.S.” marks a nod to the M1918 trench knife of World War I. Retains the classic four-finger knuckle grip design for secure handling and historical authenticity.

🗡️ Powerful 440C Steel Blade with Automatic Deployment:

Blade: High-quality 440C stainless steel, 9.2 cm long with a blood groove/reduction channel. Strong piercing ability for cutting ropes, emergency breaking, or self-defense.
Deployment: Side push slider automatic mechanism; thumb press instantly deploys and locks the blade. Fast, smooth, and reliable.

🛡️ Zinc Alloy Handle & Glass Breaker:

Handle: One-piece zinc alloy, ergonomic four-finger knuckle design ensures firm grip and tactical reliability.
Tail Function: Integrated high-strength glass breaker for emergency vehicle escape.

📏 Specifications:

Model: AS Series AS-Y
Total Length: 23.2 cm
Blade Length: 9.2 cm
Handle Length: 14 cm
Blade Material: 440C Stainless Steel
Handle Material: Zinc Alloy
Deployment: Spring-Assisted Automatic
Net Weight: 240 g
Accessories: Detachable metal pocket clip, integrated glass breaker

🎒 Ideal For:
Everyday EDC, car emergency rescue, rope cutting outdoors, tactical self-defense, or as a collectible gift for military enthusiasts and knife collectors.