The First Defense OC/CS MK-4 Stream Aerosol from Defense Technology (part no. 1030660) is a duty-belt OC/CS pepper spray with a grey-banded canister and a stream delivery method. The 3 oz MK-4 delivers 20-25 short bursts at an effective range of 10-12 ft, and it is an ideal size to wear on a duty belt. The stream pattern concentrates the spray for greater standoff. The OC/CS formulation is not EDW safe. It is built for patrol users who want the most output in a belt-carried size.

Key Specifications

• Delivery method is stream, a target-specific, concentrated stream that gives greater standoff.
• The canister holds 3 oz of product in a duty-belt size.
• Output is 20-25 short bursts per canister at the stated range.
• Effective range is 10-12 ft with the stream pattern.
• The formulation is OC/CS, and the grey-banded canister marks the unique blend that targets the respiratory system.
• Maker testing found it non-flammable but not EDW safe, so it should be kept away from electronic discharge weapons.
• Major capsaicinoid percentages are verified by an independent laboratory for quality assurance.

Frequently Asked Questions

How many bursts does the MK-4 OC/CS canister deliver? It delivers 20-25 short bursts at an effective range of 10-12 ft from a 3 oz canister.

Is the MK-4 OC/CS formulation flammable? No. Defense Technology tested it as non-flammable, but it is not Electronic Discharge Weapon (EDW) safe.

What is OC/CS? It is Defense Technology OC/CS formulation, identified by the grey banded canister, which targets the respiratory system.

Buy the First Defense OC/CS MK-4 Stream Aerosol

When you want the most output a belt-carried First Defense canister offers, the MK-4 is the one. Order it from our Lubbock, Texas gun shop for fast shipping, and see our pepper spray and OC range. Ownership or shipping of this item is restricted in some states and localities — confirm your local laws before ordering.