First Defense 1.3% Mk-9 Foam Oc Aerosol

The First Defense 1.3% Mk-9 Foam OC Aerosol is a critical defensive tool engineered for law enforcement, corrections officers, and security professionals who require reliable, effective crowd control or personal protection in dynamic threat environments. This foam-based delivery system represents a proven platform trusted by agencies nationwide for its consistency, accuracy, and minimal collateral exposure.

Built on decades of riot control and self-defense doctrine, the Mk-9 foam formulation addresses the operational reality that traditional liquid sprays drift in wind and overspray adjacent areas—a liability in confined spaces, vehicle interiors, or crowded settings where precision matters. The 1.3% concentration of oleoresin capsicum (OC) delivers potent inflammatory effects on mucous membranes and skin while the foam matrix clings to the target's face and eyes, maximizing contact time and reducing runoff.

The aerosol delivery mechanism provides controlled, directional application over a practical range, allowing operators to maintain standoff distance and situational awareness. Defense Technology's proven formulation chemistry ensures rapid onset—typically 3–5 seconds—with effects lasting 20–90 minutes depending on individual sensitivity, humidity, and decontamination efforts. The compact form factor and weight make this unit portable for duty belt carry, vehicle storage, or emergency response kits without bulk or balance penalties.