$69.95
I looked into a lot of stun guns before I came across this one, and the knuckle design is genuinely different from anything else in this category. You slip it over your fingers like a handle, so it stays in your hand whether you’re gripping it or not — no fumbling, no dropping. The spiked electrodes also work as a contact deterrent on their own, which is something most stun guns don’t give you.
Most stun guns are handheld devices — you grip them, use them, and hope you don’t drop them when it counts. The ZAP Blast Knuckles Extreme is built differently. It wraps around your fingers, so the grip isn’t something you have to maintain under pressure. That’s a practical design decision, and it’s the main reason this one kept coming up when I was comparing options in this price range.
The 950,000-volt output is backed by 5 milliamps, which is where the real stopping capability comes from. Voltage gets the attention, but milliamps are what actually affect muscle function — and 5 milliamps is a solid number in this category.
This is a good fit for someone who wants a stun gun they can hold without thinking about it — joggers, people who walk at night, or anyone who wants something ready in hand rather than buried in a bag. The knuckle format means it’s secured to your hand from the moment you put it on.
It’s also worth considering for anyone who wants a backup option that doesn’t rely entirely on the electrical component. The spiked electrodes give you a physical contact surface if the batteries are ever depleted or you simply don’t want to use the stun feature. That redundancy is genuinely useful.
If you’re looking for something ultra-compact that disappears into a small purse pocket, this isn’t it — the knuckle format has some size to it. But if carry-in-hand is your plan, the size works in your favor.
Choose the ZAP Blast Knuckles Extreme if you want:
Consider something else if you need:
The knuckle grip design is the headline feature, but the construction holds up on its own merits too. The ABS plastic shell has a rubberized coating that improves grip in wet conditions — something worth thinking about if you’re using this while running or in unpredictable weather. At 0.8 lbs, it’s heavier than a keychain stun gun but light enough to carry in hand for extended periods.
The four spiked electrodes are functional, not just aesthetic. They create a contact surface that, in a situation where you need to push someone away or create distance, adds meaningful utility beyond the electrical component. And because the spikes can make surface contact, they may collect forensic material — something the manufacturer notes as a potential benefit for post-incident identification.
Power comes from two CR123A lithium batteries. These are widely available, long shelf-stable, and don’t require you to remember to charge anything. There’s a switch safety to prevent accidental discharge, and a nylon holster is included if you want a carry option beyond holding it in hand.
| Feature | ZAP Blast Knuckles Extreme | Standard Handheld Stun Gun | Keychain Stun Gun | Stun Baton | Pepper Spray |
|---|---|---|---|---|---|
| Voltage | 950,000V ✓ | Varies | Varies | Varies | N/A |
| Milliamps | 5mA ✓ | Varies | 1–4mA | 4–5mA | N/A |
| Grip Security | Knuckle-mounted ✓ | Hand grip | Hand grip | Two-hand grip | Hand grip |
| Physical Backup | Spiked electrodes ✓ | Limited | None | Baton body ✓ | None |
| Portability | Moderate | Moderate ✓ | High ✓ | Low | High ✓ |
| Best For | Carry-in-hand, jogging | General carry | Keychain, purse | Home, patrol | Distance deterrent |
The Blast Knuckles Extreme measures 4.4″ x 1.13″ x 3.25″ and weighs 0.8 lbs. It runs on 2 CR123A lithium batteries (included). The ABS plastic and rubberized shell holds up well to regular carry. A nylon holster is included. Backed by ZAP’s 2-year warranty. Check your local laws before purchasing — some jurisdictions restrict stun gun ownership or carry.
If you want a stun gun that stays in your hand without effort, the knuckle design solves a real problem. Pick it up, put it on, and it’s ready.
Voltage is what you see advertised most often because high numbers are attention-grabbing. But milliamps are what actually affect muscle function — they’re the measure of current that disrupts the body’s ability to move normally. The Blast Knuckles Extreme has 5 milliamps, which is on the higher end for consumer stun guns. Think of voltage as how far the electricity jumps, and milliamps as what it does when it gets there.
The device has a looped handle that fits over your fingers — similar in concept to brass knuckles in form, but with electrodes on the front face. You slip it onto your hand, and it stays there without active gripping. This means if you’re startled or your hand tenses up, the device isn’t going anywhere. The electrodes make contact when you press the front face against a surface.
CR123A batteries have a very long shelf life — typically 10 years in storage — so they won’t drain just from sitting on your nightstand. In active use, battery life depends on how often you test or fire the device. They’re available at most hardware stores, camera shops, and online retailers. It’s worth keeping a spare set around.
Stun gun laws vary significantly by state, city, and even building or campus. Most U.S. states permit civilian stun gun ownership, but some have restrictions on carry in certain locations, and a few states or cities still restrict them entirely. I’d recommend checking your state’s current laws and any local ordinances before purchasing. This product ships based on your order location, so it’s worth doing that research first.
| Stun Gun Manufacturer | ZAP |
|---|---|
| Stun Gun Brand | Blast Knuckles Extreme |
| Voltage | 950,000 |
| Milliamps | 5.0 |
| Battery | 2 Lithium CR123A |
| Color | Black |
| Safety | Switch |
| Material | ABS Plastic + Rubberized Coating |
| Holster | Nylon |
| Warranty | 2 Years |
| Weight | 0.8 lbs |
| Dimensions | 4.4” x 1.13” x 3.25” |
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