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The basic fictional mechanism
Ubisoft describes the Hidden Blade as a spring-loaded knife secured to a leather or metal bracer and concealed beneath the forearm. In its familiar configuration, the blade slides forward from the bracer when activated. The details vary by character and game rather than following one universal design. Ubisoft’s 2024 design history traces those variations across the series.
How the mechanism differs by character
| Character or version | Activation or movement | Mounting and other details |
|---|---|---|
| Altaïr | A cord attached to a ring deploys the blade. | The underside-mounted blade passes between the middle and little fingers of a clenched fist. The lore presents the missing ring finger as both a rite and a practical accommodation for the blade’s path. |
| Ezio | A pressure switch replaces the ring-and-cord activation. | The design does not require a finger to be removed. In the fiction, Ubisoft attributes the advance to knowledge Altaïr gained from the Apple of Eden. |
| Connor and Aveline | The blade can pivot 90 degrees. | The pivot lets it be held more like a regular knife. |
| Arno | The Phantom Blade unfolds as a miniature wrist-mounted crossbow and launches the Hidden Blade as a projectile. | It is a projectile-firing variant rather than simply a forward-sliding blade. |
| Darius and Eivor | Ubisoft describes the blade design, but not a distinct activation method in the cited accounts. | The device is mounted above the forearm. |
| Bayek | A familiar forward-sliding mechanism. | The franchise’s account connects Bayek’s version to the later tradition of the Hidden Blade. |
Ezio’s bracer also becomes a platform for additional fictional weapons. Ubisoft associates later upgrades with a Hidden Gun, a poison blade, and a poison-dart launcher; these are add-ons, not descriptions of how every Hidden Blade works.
Why Altaïr’s version is associated with a missing finger
In the first game’s lore, the blade travels between two fingers when the hand closes, so the design is depicted as requiring space along its path. The missing left ring finger becomes a symbolic rite as well as a practical accommodation for that particular arrangement. Ezio’s pressure-switch design removes the requirement, so the finger sacrifice is not universal across the series.
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- Authentic Movie Replica Design: Full size adult role-play replica designed from the movie prop used in the assassin's creed motion picture
- Real-sized role-playing accessories: This real-sized accessory is equipped with retractable blades, providing an immersive role-playing experience.
- Secure Attachment System: The blade section attaches to bottom of forearm with Velcro straps while gauntlet attaches to top of forearm with strap and buckle
- Durable Plastic Construction: Made from tough plastic material with approximately 8-inch blade length, designed for costume and cosplay use
- Dual-function control: By pulling the circular interlocking pull tab once, the blade can be activated. Pull it a second time and it will retract and lock in place.
What the origin story means—and what it does not
Ubisoft’s franchise chronology says Darius designed and used an above-wrist Hidden Blade against Xerxes I, and that Bayek later inherited the weapon. The weapon-history account connects Bayek’s finger injury in a botched assassination to the later tradition. These events belong to the series’ fictional timeline, not documented proof that the weapon existed in history. Ubisoft’s chronology gives the in-universe context.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Could it work in real life?
The official descriptions establish how the weapon is portrayed in the games, but they do not provide dimensions, tolerances, a complete trigger-and-return assembly, or real-world test results. They therefore do not establish that a device could reproduce the Hidden Blade’s operation as depicted. A decorative costume bracer is a different matter: Ubisoft’s Mirage cosplay guide is a costume-design reference, not a functional mechanism specification.
Quick Recap
Best Value
- Metal Blade + 3D Printed ABS Body (Hybrid Build) - The blade itself is solid metal with a realistic sheen; the housing is upgraded ABS, precision 3D printed for a clean fit. The result is a prop that has weight where it should and stays light enough for all-day wear.
- True 1:1 Scale, 15.35 Inches Extended - Full length measures 15.35 in with the blade out (7.48 in blade section), matching the on-screen proportions fans expect. Intricate engravings and the gear-style base make it a display-shelf piece as much as a costume accessory - it looks the part up close.
- Smooth Telescopic Action, Convention-Safe Profile - Slide or flick and the blade extends with one fluid motion, then retracts flush into a flat, full silhouette. The flat profile passes most convention prop checks - reviewers confirm wearing it all day without issues.
- Adjustable Nylon Wrist Strap - Wrap the strap around your forearm and buckle it snug; it adjusts to fit most adult and teen arms. Ergonomic curve keeps the base seated on your forearm through cosplay shoots, stage performances and long convention days.
- SAFETY NOTICE - Display & Cosplay Prop Only - This is NOT a functional weapon: the blade is blunt with no sharpened edges, for costume wear and display use only. Recommended for ages 14+. Not affiliated with any game publisher; If you encounter any problems during use, please feel free to contact us at any time.
Rank #4
- REALISTIC DESIGN: Detailed black costume prop weapon with retractable blade mechanism and intricate gear pattern details
- COSTUME ACCESSORY: Perfect for role-playing events, conventions, and costume parties as a fantasy-themed prop
- DURABLE CONSTRUCTION: Made with sturdy plastic materials that maintain their shape while being lightweight and comfortable to wear
- EASY TO USE: Features a smooth retraction mechanism that extends and retracts the prop blade seamlessly
- DIMENSIONS: Extended blade length approximately 12 inches, making it an ideal size for costume wear
Rank #3
- Full size adult role-play replica designed from the movie prop used in upcoming assassin's creed motion picture
- Features button activated play-action, extending hidden Blade
- Easy-to-use slip-on gauntlet with cinch cord for a comfortable fit around all adult arm sizes
- Extended hidden Blade gauntlet is Approx. 14 inches long
- Assassin's creed movie in theaters on December 21, 2016
Rank #2
- AUTHENTIC 1:1 SCALE: Recreated at true 1:1 scale with intricate details inspired by pirate-era aesthetics. The matte retro black coating delivers an authentic metallic texture — a genuine-looking piece from a fantasy historical world, not a toy.
- BUILT FOR REPEATED USE: High-precision 3D printing in upgraded industrial-grade ABS balances lightweight comfort with rugged durability. The reinforced sliding track is designed to withstand frequent extension and retraction through long conventions and roleplay sessions.
- SMOOTH ONE-MOTION DEPLOYMENT: A precision-tuned sliding track lets the blade extend and retract with a single flick of the wrist. If the tension string loosens over time, it can be re-secured in minutes — see the quick-fix guide in our images.
- FITS MOST FOREARMS: Adjustable nylon straps with a secure buckle fit most adult and teen wrist sizes. Extended length 15.35 in, retracted casing 9 in, blade 7 in — comfortable for all-day wear at conventions.
- COSTUME PROP ONLY — BLUNT SAFE BLADE: Designed exclusively for cosplay, Halloween and display. The blade is made of blunt safety material with no sharp edges and no cutting function.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
