Quick Answer
Choose the Soileater V3 if you need a versatile, ambidextrous tourniquet holder for belts or MOLLE. Pick the Black Triangle S4 if you want a discreet, pocket-friendly knife for non-permissive environments.
Different Jobs, Different Trade-Offs
These two pieces of tactical gear solve different problems. The Soileater V3 is a medical accessory built to keep a tourniquet accessible and secure. The Black Triangle S4 is a backup blade designed for low-profile carry when a gun isn't an option.
Your choice depends on what gap you're filling. If you already carry a tourniquet loose in a pocket or bag, the Soileater V3 adds organization and quick access. If you need a last-resort tool in a no-gun zone, the S4 gives you a blade without printing.
Price also separates them: the Soileater V3 sits at a lower price point, while the Black Triangle S4 costs more, reflecting its multi-knife design heritage.
Carry Style and Environment Matter
The Soileater V3 mounts on MOLLE or a belt with one-wrap, and its ambidextrous design works for left- or right-handed users. It's overt gear—visible when worn on a belt—which is fine on a range or in the field.
The Black Triangle S4 is built for concealment. Its sheath hooks for pocket carry and comes with a Raven Concealment IWB Overhook, so it can ride inside the waistband. This makes it a better fit for non-permissive environments where open carry isn't allowed.
Think about where you'll actually use the gear. If you're always in a duty belt or plate carrier, the Soileater V3 integrates smoothly. If you're moving through urban spaces or workplaces with restrictions, the S4 stays hidden.
Trade-Offs at a Glance
- Carry Purpose: Soileater V3 is for medical readiness; Black Triangle S4 is for personal defense. Choose based on what you need to have on you. Don't compare them as substitutes; they serve different roles.
- Concealment: The S4 excels in non-permissive environments with pocket or IWB carry. The Soileater V3 is more overt and better for open carry setups. Assess your daily environment before choosing.
- Price: The Soileater V3 is budget-friendly at around $21.60, while the Black Triangle S4 is a higher-cost investment at $72.45. If budget is tight, the Soileater V3 delivers value for its role.
- Mounting Flexibility: The Soileater V3 adapts to MOLLE or belts with one-wrap. The S4 is fixed to pocket or IWB carry via its sheath. Choose the Soileater V3 if you need multiple mounting options.
Product Facts
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Black Triangle S4: The Black Triangle S4 combines the blade profile of the Donovan, tip strength of the Senka, and index point of the MK4. You get a blade designed for both cutting and piercing, with a grip that indexes consistently for fast deployment.
Black Triangle S4
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Black Triangle S4: The S4 sheath is cut with a hook for pocket carry and comes clipped with a Raven Concealment IWB Overhook. This means you can carry it discreetly in a pocket or inside the waistband without extra hardware.
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Soileater V3: The Soileater V3 includes Mil-Spec elastic and a laser-cut SQUADRON body that is fully ambidextrous. Left- and right-handed users can mount and access the tourniquet without changing the setup.
Soileater V3
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Soileater V3: It offers 12 inches of one-wrap for MOLLE attachment or cutting in half for belt mounting. You can adapt the holder to a plate carrier or a belt, giving you flexibility in how you carry your tourniquet.
Who Should Choose What
Best For
- The Soileater V3 for anyone who needs a versatile, ambidextrous tourniquet holder for belts or MOLLE.
- The Black Triangle S4 for those who need a discreet backup blade in non-permissive environments.
Not For
- The Soileater V3 is not for those needing a concealed self-defense tool.
- The Black Triangle S4 is not for those on a tight budget or who only need medical gear.

