✔ Exquisite Craftsmanship – Each of these custom pieces are hand-crafted with tolerances as little as one-thousandth of an inch. (.001") Heretic’s commitment to fine craftsmanship can be seen in every detail, in each piece.

✔ Elegant Designs – Precision, attention to detail, and motivation to surpass expectations. These are a few attributes that shine through the beauty of all Heretic knives.

✔ Family Heirloom –  Like a fine timepiece your knife arrives in a custom numbered box with papers. These knives are sure to become family heirlooms, passed on to your future generations.

The Hydra is a single action OTF (out the front) knife. It is the first of its kind to feature a button safety and double prong pocket clip. The titanium spring assures a rapid deployment.

  1. To operate the knife, simply move the button safety over with your thumb, then press the button underneath to fire.
  2. In order to retract the blade, press the button while pulling the charging handle from the bottom of the knife. Release the button and return the charging handle to its original resting state. this recharges the spring inside, and resets the mechanism.
  3. To see this knife operate watch the video on the bottom of this page.



Knife Type Single-Action OTF Automatic
Open By Swivel/Push Button
Blade Type Drop Point
Blade Edge Plain/Jimping
Blade Grind Hollow
Blade Material CPM-154
Blade Finish Battleworn
Blade Length 3.625”
Blade Thickness 0.15”
Overall Length 9.00”
Weight Appx. 5.3 oz.
Handle Type Aluminum
Handle Color Black
Pocket Clip Double Prong Clip Down
Handle Spring Titanium Tumbled
User Right Hand
Other Box/ Papers/Pouch
Use Tactical

DESIGNED BY Anthony (T.J.) Marfione

In 2015 T.J. and his wife Jessica founded Heretic Knives. As a second generation knife maker, applying the knowledge that was passed to him, he wanted to bring designs and certain elements to the craft that hadn’t been tried before.

Countless hours are spent designing , engineering and producing Heretics’ knives to ensure the end product is one that is long lasting and timeless in design. They pledge that every knife that leaves there facility is an impeccable work of art that is sure to impress! 

Automatic knives are dangerous and should be handled with extreme caution in all circumstances. Comply with all local, State, and Federal regulations regarding the purchase, owning, carrying, and transportation of automatic knives.

RESTRICTED PRODUCT: Sale of this item is resticted to Law Enforcement or Active Military Personell only. In order to purchase this item you must fax or email a copy of your Official ID.
Fax: 914-592-3892
Email: info@fire-end.com

Disclaimer: Knives are only sold to individuals who can legally purchase and own such items in the jurisdiction where they reside. When you order and purchase this merchandise, you represent that you are of legal age to purchase this merchandise and that this merchandise can be purchased and owned in your state, county, and/or city of residence. Fire-End & Croker Corporation does not represent or warrant that any specific purchaser may legally purchase, own, or possess the merchandise ordered. CHECK YOUR LOCAL LAWS!

Click on photo above which will direct you to the manufacturer’s Facebook page which contains the video.

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Heretic Hydra Knife - Battleworn

  • Brand: Heretic
  • Model: HTK-H007-5A
  • $425.00

Available Options

Delivery/Shipping Availability: Item ships directly from manufacturer. Approximate delivery in 1 week.

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Tags: Heretic Knives, Heretic Hydra Knife, Hydra OTF Auto, Hydra Knives, automatic knife, automatic knives, switchblade knives, HTK-H007-5A, H007-5A