For most people, their keychain goes just about everywhere they do. If this is the case for you, why not add a useful self-defense weapon to the mix? Keychain additions in the form of stun guns, batons, knives, and striking weapons allow you an edge if trouble comes your way.
There are no guarantees in life. But one or more of the keychain weapons below can help even the odds when they’re stacked against you. Pick your attacker’s bane and make them regret choosing you as their unsuspecting target.
8 Keychain Weapons for Added Security
The Home Security Superstore Brutus Self-Defense Weapon

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Let this “dog” help you when you’re under attack. At the first sign of trouble, just slip two fingers in the holes, and you’re ready for a fight. The Brutus self-defense weapon offers a lightweight, yet almost indestructible body. Brutus’s ears are sharp and pointed, just the thing to deter an attack. Best of all, the unit is compact enough to fit onto your keyring or in a purse or pack. An attacker won’t know what hit them until they feel the bite of this pocket-sized beast.
Specifications
- Unbreakable ABS molded plastic
- Rigid knuckles and sharp edges
- Hangs easily on your keychain
- Compact and lightweight
- Available in black or pink colors
MSRP: $9.99
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Gerber Gear Keynote Knife

Need a blade in a pinch? Then look no further than the Keynote knife. This ultra-compact finger-flip blade gives you an edge when you need it. With a keyring already included, this micro weapon can assist when trouble comes your way. When not in a dangerous scenario, this knife offers quick cutting for a variety of tasks at home or when out. Textured aluminum scales and a liner lock complete this compact companion.
Specifications
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- Finger flip opening
- Aluminum scales
- 5Cr blade steel
- Discreet, easy-to-carry unit
- Fine, sharpened edge
MSRP: $29.99
CRKT Williams Utility Key

You can’t get more key-centric than this utility key from CRKT. This steel-constructed key tool/weapon is useful for both self-defense and around-the-house uses where needed. If attacked, this keychain weapon is perfect for striking vital areas or manipulating pressure point targets. Just hang it on your keyring like all your other keys, and no one will be the wiser. Convenient and practical, you get both with the Williams Utility key.
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Specifications
- Ergonomically designed
- Handle offers a secure grip
- Useful for pressure point manipulation
- Integrated screwdriver tip and prying bar
- 3Cr13MoV steel construction
MSRP: $9.95
KarateMart Ninja Spike Keychain

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You don’t need to be a ninja to use this devastating handheld keychain weapon. Constructed of solid steel, this keychain addition packs a powerful punch. Just grip it within your hand and use the three contact points to defend yourself when attacked. The prongs can be used to strike or manipulate pressure points on your assailant’s body. The unit is highly durable, easy to carry and conceal, and lets a foe know that you won’t be a defenseless victim.
Specifications
- Solid metal construction
- Anodized black color
- Easy to carry and conceal
- Multiple striking points
- Includes keyring
MSRP: $13.95
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Streetwise USB Keychain Stun Gun

This stun gun stays hidden until needed, disguised as a USB flash drive. Keep this unit attached to your keyring, fully charged and ready to go. At the first sign of trouble, just slide and push the activation button to ward off possible assailants. This stun gun offers quick recharging with an included cord, an integrated LED light, and a single push-button design.
Specifications
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- Discreetly disguised as a USB drive
- 22 million volt discharge
- Slide and push activation mechanism
- Integrated LED flashlight
- Easily attaches to a keyring
MSRP: $19.95
CRKT Compano Carabiner

When danger is near, the Compano can jump into action. This small but effective blade can be your backup when you’re seemingly defenseless when attacked. Its unique design allows you to slip your finger into its center hole for ultimate control and precision cutting and puncturing use. The Slip joint locks the blade in place, while its stainless steel handle keeps your grip solid and in control. An integrated carabiner makes attaching it to your keyring a true no-brainer.
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Specifications
- High carbon stainless steel
- Carabiner for keychain attachment
- 5Cr15MoV blade steel
- Slip joint for safety locking
- Stainless steel handle
MSRP: $44.00
Police Force Tactical Keychain Baton

From an innocent-looking keychain bauble to a full twelve-inch-long defense weapon, that’s this weapon in a nutshell. The baton is constructed of solid steel and hits like a tank when an attack comes your way. A simple flick of your wrist extends this helper, and it locks firmly in place. Use it for both offense and defense. When not in use, the unit folds down to five-and-a-half inches in length and hangs innocently with your keys.
Specifications
- Expands to a full twelve inches
- Weight: 9.00 ounces
- Solid steel construction
- Etched handle for a solid grip
- Integrated keyring for everyday carrying
MSRP: $19.95
Streetwise SHAR-KEY Self-defense Weapon

With an appearance like a harmless keychain accessory, this discreet weapon can help when you’re attacked on the streets. The SHAR-KEY is uniquely designed to provide a solid grip for you and three striking points against your attacker. The unit is constructed of durable plastic with a textured gripping surface. An integrated keyring ensures this ocean predator always joins you for your daily travels. Available in multiple colors.
Specifications
- Three distinct striking points
- Metal detector-friendly
- Knuckle protection
- Finger indentations for a firm grip
- Include keyring
MSRP: $10.95