First Defense .7% MK-4 Stream OC Aerosol: equipment that earns its keep
Less-lethal only works when it’s trained, staged, and dependable. The First Defense .7% MK-4 Stream OC Aerosol is duty-grade equipment for exactly that.
Why it earns its place
- Stream pattern. Aimed delivery with less crosswind blowback.
- 7% MC formulation. Strength as stated by the manufacturer.
- 12 ft effective range. Distance between you and the problem, per the maker’s spec.
Who runs it
Officers, corrections, security professionals, and citizens who take intermediate options seriously.
Specifications
| Type | Defense Tool |
|---|---|
| Rating | 7% MC |
| SKU | DT-MK-4 |
Common questions
Can I carry this where I live?
Less-lethal laws vary by state and city — verify your jurisdiction before purchase. We answer stocking questions; your local rules answer carry ones.
Less-lethal tools carry legal and training obligations — know your jurisdiction’s rules and train with what you carry.
911 Network stocks duty gear deep — if you need a spec confirmed or a fitment double-checked, ask the Network first.
