Law Enforcement Grade Police Duty Crowd Deterrent Spray. MK-9 DPS 18.5oz fog delivery spray is Sabre most powerful crowd control pepper spray is optimized for law enforcement usage.Packed with 10% OC concentration with 1.33% major capsaicinoids, the stopping power is both powerful and efficient. The formula is designed to immediately inflame the sensitive membranes of the lungs, eyes and nose to instantly disorient and immobilize assailants. The dual propellant system (DPS) combines Dupont Dymel134a propellant with nitrogen gas into a fog pattern delivery to maximize coverage and maximum reach. The pistol style grip allows users to hold the can with optimal control and handling.