Black Triangle G10 knife: Covert, non-metallic EDC for low-vis self-defense in NPE. Lightweight & durable concealed carry.

S4

(8 reviews) Write a Review
$105.00
Availability:
Ships in 5–13 business days. Wrapped sheaths add 3 business days
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The Black Triangle S4 is a non-metallic G10 knife designed for everyday carry, concealed carry and self-defense.
We took the best features of our top-performing knives and put them into one product. It has the blade profile of the Donovan, tip strength of the Senka, & index point of the MK4. The S4 sheath is cut with a hook for pocket carry & comes clipped with a Raven Concealment IWB Overhook Strut. As all of our G10, S4 is a 100% metal-free system.

Key Features
Ergonomic handle
Black Hemp Jute Wrap
Index at pommel for confident draw
Hooked sheath for IWB or pocket carry

Rush or expedited orders may be available. Email cs@blktriangle.com before ordering.

Unsure about choosing the right camo? Here is an article about our current camo offering>> click here.

Overall Length 7.25"

Blade Length 3.50"

Thickness .250"

Warranty Lifetime Guarantee

All G10 knives come packaged in original Black Triangle VHS case from "Triangle Video" including a sticker.

Black Triangle G10 knives are backed by a lifetime guarantee. If something bad happens to your product, contact us so we can assist you further. SHIPPING INFORMATION: SHIPPING TO OCONUS APO/FPO/Diplomatic Post IS NOT RECOMMENDED! You'll likely get the item rejected. UK residents accept the risk of shipping our product into the United Kingdom. We are not responsible for its fate within the Royal Postal Service.

8 Reviews Hide Reviews Show Reviews

  • 5
    S4 G10 Knife - great knife

    Posted by Travis on May 13th 2026

    Fits well in my hand, the cord wrap is great. Shipped out quickly and they answered any questions I had

  • 5
    Great non-metallic knife!

    Posted by Thomas Evans on Dec 8th 2025

    The S4 brings quality-looking construction, a sturdy penetrating point, a nice handle wrap, and a non-metallic sheath as well. The S4 will definitely come with me to settings where metal is not an option.

  • 5
    Top of the line

    Posted by Sam on Aug 24th 2025

    This thing is insane. Amazing holster, and WILL do damage. 100/10

  • 5
    Kiridashi Knife

    Posted by Brad on Aug 18th 2025

    I have purchased several items and all of them are exactly as described. I am extremely impressed with the service and delivery time. I highly recommend any of their products.

  • 5
    Beautiful Knife

    Posted by Eli on Jun 23rd 2025

    Feels great in your hand, smooth draw, high quality

  • 5
    S4 G-10

    Posted by Yanal Taouch on May 29th 2025

    Feels as if it was custom made for me. This is my second purchase and these guys are awesome and make quality products in the USA!

  • 5
    S4

    Posted by Darren on Apr 29th 2025

    Just received my S4 and immediately felt the quality and the design of the knife. This is a great piece to add to anyone’s EDC. Highly recommend.

  • 5
    S4

    Posted by C on Apr 13th 2025

    Excellent Build, Feel And Quality! Fast Shipping, Perfect For An Every day Carry! Thanks Black Triangle ?

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