How to Refill Mace Pepper Gun 2.0 with OC Cartridge

By Quick Release Compact Hard CasejaV Pepper Spray 2 Pack - Lilac & Black... | Published: 2026-10-20

Category: How-to Guides

Learn the safe, correct way to reload your Mace Pepper Gun 2.0 with an OC cartridge, including compatibility checks and common mistakes to avoid.

Quick Answer

To refill your Mace Pepper Gun 2.0, always use the dedicated OC cartridge refill, confirm your model is compatible, and follow a safe removal-to-reload sequence.

Why Using the Correct Cartridge Matters

The Mace Pepper Gun 2.0 uses a specially designed OC cartridge. Using a cartridge from an older Mace model, such as those numbered 80585 or 80405, will not fit because the canister design has been updated. Forcing an incompatible cartridge can damage the gun or cause a misfire.

The refill cartridge contains 10% OC (oleoresin capsicum), which is what delivers the inflammatory effect. Always verify the cartridge is labeled for the Pepper Gun 2.0 before you attempt a reload.

Safety First: Handling Pepper Spray

OC spray can cause severe irritation if it contacts your skin or eyes. Work in a well-ventilated area, keep the nozzle pointed away from your face, and wash your hands after handling. If you are reloading indoors, do it near a sink or with paper towels ready.

A common mistake is to reload while the gun is still pressurized. Always ensure the gun is unloaded and the safety is engaged before starting.

Step-by-Step Refill Process

Confirm Compatibility: Check that your device is a Mace Pepper Gun 2.0. The refill cartridge will not fit older models (80585 or 80405). Look for the model number printed on the gun body. If the model number is missing, contact the manufacturer to verify before ordering a refill.
Unload and Engage Safety: Point the gun in a safe direction, fire any remaining spray into a trash bag or outdoor area, then engage the safety switch. Confirm the gun is empty and will not discharge. Never skip this step—reloading a pressurized gun can cause accidental discharge.
Remove the Old Cartridge: Locate the cartridge release latch or twist mechanism on the Pepper Gun 2.0. Press or twist to release the spent cartridge and pull it straight out. Avoid touching the nozzle area. If the cartridge does not come out easily, do not force it—check for a lock or release button you may have missed.
Insert the New OC Cartridge: Take the new Mace OC cartridge refill and align it with the opening. Push it in firmly until it clicks into place. Ensure it sits flush and does not wobble. A loose cartridge can cause misfires—test the fit by gently shaking the gun.
Test and Store: Disengage the safety, point the gun away, and do a quick one-second test spray to confirm it functions. Then re-engage the safety and store the gun in a cool, dry place. If the spray does not come out, remove and reinsert the cartridge—do not attempt to modify the nozzle.

Product Facts

Mace OC Pepper Spray Cartridge Refill for Mace Pepper Gun 2.0: This OC cartridge refill is designed exclusively for the Mace Pepper Gun 2.0 and includes one replacement cartridge for fast, reliable reloads. You get a drop-in replacement that fits the updated canister design, so you can reload without worrying about compatibility issues.
Mace OC Pepper Spray Cartridge Refill for Mace Pepper Gun 2.0