ZAP Blast Knuckles Extreme Stun Gun 950,000 Volts – 5.0 Milliamp Output, Four-Finger Knuckle Grip, Replaceable CR123A Lithium Batteries, Rubberized ABS Construction, Nylon Belt Holster Included

Built Around the Problem Most Stun Devices Ignore

Pick up a standard stun device and squeeze it. Now imagine doing that with adrenaline shaking your hands, sweat on your palms, and someone trying to take it from you. Grip retention isn’t a feature — it’s the feature. Without it, everything else the device does becomes irrelevant.

The Blast Knuckles puts your four fingers through molded openings so the device becomes part of your hand. It can’t be slapped away, dropped during fumbling, or easily grabbed by someone else.

Who This Stun Device Is For

People who prioritize device retention above all other considerations. Security workers or anyone in roles where physical confrontation is a realistic possibility. Users who prefer replaceable batteries over rechargeable systems — you can carry spares and swap them in seconds rather than waiting hours for a charge.

If concealment is your priority, this isn’t the most discreet option. The knuckle design is distinctive. It’s built for situations where having a secure grip matters more than having an invisible profile.

Why Milliamps Matter More Than Voltage

Voltage creates the visible arc and bridges the gap to a target. But milliamps — the actual electrical current — determine what happens when that charge reaches muscle tissue. At 5.0 milliamps, the Blast Knuckles delivers more current than models advertising 70 or 90 million volts. It’s the difference between a spark that looks impressive and a charge that causes involuntary muscle contraction.

The knuckle design also positions the electrical contacts naturally when your hand is closed. You don’t need to think about aiming or orienting the device — close your fist and the contacts face outward. The rubberized ABS plastic construction provides additional grip texture and absorbs some impact during use. Two CR123A lithium batteries power the unit, with each set lasting 50-100 activations depending on arc duration. CR123A batteries have a 10-year shelf life and perform reliably in temperature extremes, making them ideal for emergency preparedness situations where a device might sit unused for months.

Practical Details

Dimensions are 4.4″ x 1.13″ x 3.25″, weighing 0.8 pounds with batteries installed. The finger openings accommodate average to large adult hands — if you have particularly small hands, the fit may be less secure. Uses two CR123A lithium batteries (included), available at most hardware and sporting goods stores. The nylon holster includes a belt loop and fits on bag straps. Rubberized ABS plastic construction. 2-year manufacturer warranty from ZAP. Check local regulations before purchasing — some jurisdictions restrict electrical self-defense devices.

If keeping the device in your hand is the concern that keeps you up at night, the Blast Knuckles was designed specifically for that problem.

Frequently Asked Questions