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Defense Technology First Defense 0.4% MK-4 Stream OC Aerosol

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Item #: 1013266 DEF TECH

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The MK-4 is an ideal size for patrol officers to wear on a duty belt and will deliver 20-25 short bursts of OC at an effective range of 10-12 ft. This .4% MC OC aerosol product utilizes a stream delivery method providing a target-specific, strong concentrated stream for greater standoff.



Non-flammable / Electronic Discharge Weapon (EDW) safe.



  • The stream delivery method provides a target-specific, strong concentrated stream for greater standoff.
  • The .4% MC yellow banded canister indicates the major capsaicinoid level which is discharged at the nozzle at time of use. 
  • The MK-4 is an ideal size for patrol officers to wear on a duty belt. 








Please contact Curtis Blue Line for ordering information and in-depth product specifications.