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Heretic Knives

Heretic Knives

Heretic Knives represents a bold new chapter in American knife manufacturing, founded in 2015 by TJ Marfione, a second-generation knifemaker who brings both heritage and innovation to the industry. Based in the United States, Heretic has quickly established itself as a premier manufacturer of out-the-front (OTF) automatic knives and premium manual folders, combining traditional craftsmanship with cutting-edge design philosophy.

The brand's commitment to quality begins with its materials and manufacturing process. Every Heretic knife is made in the USA using American materials, ensuring complete control over production standards and supporting domestic craftsmanship. This dedication to small-batch production allows the company to maintain exceptional attention to detail across their entire lineup, from their innovative OTF automatics to precision-engineered manual folders.

Heretic has gained particular recognition for standout models like the Medusa and Manticore series, which showcase the brand's ability to push boundaries while maintaining reliability. The company's OTF mechanisms are praised for their exceptional build quality and consistent performance, establishing Heretic as a serious contender in the competitive automatic knife market.

Within the knife community, Heretic occupies a premium position. While their products command higher price points, enthusiasts consistently note that the craftsmanship and reliability justify the investment. The brand backs this confidence with a lifetime warranty on all products, demonstrating their commitment to long-term customer satisfaction.

Whether you're seeking a tactical OTF automatic for everyday carry or a premium manual folder that makes a statement, Heretic Knives delivers American-made quality that honors traditional knifemaking while embracing modern innovation. Their rapid rise since 2015 reflects a brand that understands what discerning knife enthusiasts demand: uncompromising quality, innovative design, and mechanisms you can trust when it matters most.

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Otf KnifeFolding KnifeEdc KnifeTactical Knife
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Heretic Knives Knives (20)

Manticore-S

The Heretic Knives Manticore-S is a large, fixed blade knife with a full tang and a drop point blade. The blade is made from stainless steel with a black oxide finish and has a false edge on the top. The handle is made from black G-10 with red accents and has a lanyard hole. The knife also comes with a black Kydex sheath. The Manticore-S has an overall length of 12.5 inches and a blade length of 7.5 inches. The blade is thick, with a full flat grind and a hollow ground edge. It's very sharp right out of the box and can easily handle any task you throw at it. The handle is comfortable to hold and provides good grip, even when wet. The sheath is well made and holds the knife securely in place. This is an excellent all around knife that would make a great addition to any collection. It's well built, looks great, and performs even better. If you're looking for a large fixed blade that can do it all, the Heretic Knives Manticore-S should be at the top of your list.

Manticore-X

The Heretic Knives Manticore-X is a large, fixed blade knife that was designed for tactical and utility use. The blade is made from high quality stainless steel with a black oxide coating, and it features a full tang construction. The blade is also double edged, with a sharpened top edge and a serrated bottom edge. The handle of the knife is made from textured G-10 material, and it provides a comfortable and secure grip. There is also a lanyard hole at the end of the handle for attaching to your belt or backpack. The overall length of the knife is 11 inches, and the blade measures 6.5 inches long. This knife was designed for hard use, and it can handle just about anything you throw at it. It’s an excellent choice for tactical and self-defense situations, as well as general camping and survival use. The double edged blade gives you two cutting options in one knife, and the serrated edge is perfect for sawing through tough materials like wood or bone. The black oxide coating on the blade helps to reduce reflection and glare, making it less likely to give away your position in low light conditions. And the lanyard hole at the end of the handle ensures that you won’t lose your grip on the knife if things get wet or slippery. If you’re looking for a tough, reliable knife that can handle just about anything you throw at it, then the Heretic Knives Manticore-X is an excellent choice. It’s perfect for tactical and self-defense situations, as well as general camping and survival use.

Wraith

The Heretic Knives Wraith is a high-quality, American-made EDC knife that is built for durability and performance. The blade is made from S35VN stainless steel with a black DLC coating and features a full-tang construction. The blade has a flat grind and a sharpened edge that can easily handle everyday tasks. The handle is made from G10 material and features a textured surface for a secure grip. The knife also includes a pocket clip for easy carrying.

ADV Butcher Automatic

The Heretic Knives ADV Butcher Automatic knife is a large and imposing knife that is designed for heavy duty use. The blade on this knife is nearly 9 inches long and is made from thick, durable stainless steel. The blade has a black finish and a sharp, serrated edge that is perfect for slicing through tough meat or bone. The handle on the Heretic Knives ADV Butcher Automatic knife is also made from stainless steel and features a comfortable grip that is easy to hold onto even when your hands are wet or slippery. This knife also has a strong locking mechanism that keeps the blade securely in place when not in use.

Tenshi

The Heretic Knives Tenshi knife is a beautifully designed and crafted piece of cutlery that is perfect for anyone who loves to cook. The knife features a full-tang construction with a VG-10 stainless steel blade that has been heat treated to a Rockwell hardness of 60-62. The blade is also double beveled for exceptional edge retention and sharpness. The handle on the Tenshi knife is made from black Micarta and it has been contoured to fit comfortably in your hand. The Heretic Knives Tenshi also comes with a black Kydex sheath that can be worn on your belt for easy access.

Martyr

The Heretic Knives Martyr is a large, fixed-blade knife designed for heavy-duty use. It has a wide, upswept blade with a sharpened top edge and a false edge near the tip. The blade is made of high-carbon steel and is heat treated for durability. The handle is made of black Micarta and has a finger groove for added grip. The sheath is made of black Kydex and has a belt loop for easy carrying.

Medusa

The Heretic Knives Medusa is a fixed blade knife with a 4.5 inch long, double-edged blade made of high quality stainless steel. The blade has a black finish and is extremely sharp. The handle is made of black G-10 material and is textured for a secure grip. The Medusa also comes with a black Kydex sheath that can be worn on the belt. This knife is designed for self-defense and utility purposes. The double-edged blade makes it ideal for piercing and slashing attacks, while the textured handle ensures a firm grip even in wet or bloody conditions. The Kydex sheath protects the blade when not in use and also makes it easy to carry the knife on your person.

Butcher

. The Heretic Knives Butcher is a large, heavy-duty knife designed for chopping and slicing meat. The blade is made of high-carbon steel for durability and is sharpened to a fine edge. The handle is made of hardwood for comfort and grip, and the knife includes a full-tang construction for strength. The butcher knife has a wide, curved blade that is ideal for cutting through thick cuts of meat. The blade is also useful for chopping vegetables and fruits. The knife's handle is comfortable to hold and provides a good grip even when wet. The butcher knife is a versatile tool that can be used in the kitchen or at the table.

Manticore-E

The Heretic Knives Manticore-E is a large and in charge fixed blade knife that is designed for hard use. The full tang construction and thick blade make this knife capable of taking on any task you throw its way. The contoured G10 handle provides a comfortable and secure grip, even when your hands are wet or sweaty. The Manticore-E comes with a kydex sheath that can be worn on your belt for easy access. No matter what you need a knife for, the Heretic Knives Manticore-E can handle it. Whether you're chopping wood, skinning game, or just trying to open a tough package, this knife will get the job done. The thick blade is made from high quality stainless steel that will hold an edge through anything you put it through. The G10 handle provides a comfortable and secure grip, even when your hands are wet or sweaty. The kydex sheath protects the blade and keeps it close at hand for when you need it most.

Hydra

The Heretic Knives Hydra is a large, fixed blade knife with a full tang construction. The blade is made from high quality stainless steel with a black oxide finish. The blade has a double-edged, spear point design with a blood groove running down the center. The handle is made from black G-10 material and features finger grooves for added grip. The knife also comes with a black Kydex sheath for safe and easy transport. The Heretic Knives Hydra is an excellent choice for anyone in need of a reliable and durable fixed blade knife. The full tang construction and high quality materials make this knife built to last. The double-edged spear point blade provides ample cutting power and can be used for both self defense and general utility purposes. The blood groove down the center of the blade helps to prevent sticking when slicing through tough materials. The black G-10 handle provides a comfortable and secure grip, even in wet or slippery conditions. The included Kydex sheath protects the blade when not in use and makes it easy to carry on your belt or in your pack.

Manticore-S D/A OTF SS/CF Entropic Ano Clip

. The Heretic Knives Manticore-S D/A OTF SS/CF Entropic Ano Clip knife is a high quality, durable knife that is perfect for everyday carry. The blade is made of stainless steel and is double edged with a plain edge and a serrated edge. The handle is made of carbon fiber and has a pocket clip for easy carrying. The knife also has a safety switch to prevent accidental opening. This knife is perfect for anyone who wants a high quality, durable knife that they can rely on.

Manticore-E

The Heretic Knives Manticore-E is a large, fixed blade knife with a black finish. The blade is made of high carbon steel and is full tang. The handle is made of black G-10 and has a lanyard hole. The knife also comes with a black Kydex sheath. The Manticore-E has a very aggressive look to it with its large size and all black finish. The knife is definitely designed for utility and hard use, rather than looks. It would make an excellent survival or bushcraft knife. The blade on the Manticore-E measures just over 9 inches long and is 2.5 inches wide at the widest point. It’s made from 1095 high carbon steel which gives it excellent edge retention and durability. The blade has a flat grind with a slight recurve near the tip. There’s also a false edge along the top of the blade that extends about halfway down its length. The handle on the Manticore-E measures 5 inches long and is made from black G-10. It’s contoured to fit comfortably in the hand and provides good grip even when wet. There’s also a lanyard hole at the end of the handle for attaching a wrist lanyard or other type of security tether. The Manticore-E comes with a black Kydex sheath that can be worn on a belt up to 2 inches wide. The sheath has positive retention thanks to the friction fit design, and also features an integrated drainage hole to help prevent moisture buildup inside it.

Nephilim

The Heretic Knives Nephilim is a large, fixed-blade knife designed for heavy-duty use. It has a full-tang construction with a thick, durable blade made of high-carbon steel. The blade is double-edged and features a sharpened false edge near the tip. The handle is made of black micarta and is textured for a secure grip. There is a large finger guard and a lanyard hole at the end of the handle. The Nephilim comes with a black leather sheath that has a belt loop for easy carrying.

Wraith Auto

The Heretic Knives Wraith Auto is a high-quality, American-made knife that is built for hard use. The blade is made from tough S30V stainless steel and is 3.5 inches long. The handle is made from 6061-T6 aluminum and has a textured grip for added comfort and control. The knife also features a stainless steel liner lock mechanism that keeps the blade securely in place when in use. The Heretic Knives Wraith Auto is a great choice for anyone looking for a reliable and durable auto knife.

Pariah

The Heretic Knives Pariah is a large, fixed-blade knife with a black finish and a comfortable grip. The blade is made of high-quality stainless steel and is designed for extreme durability. The handle is made of durable polymer and provides a comfortable grip even when wet. The sheath is made of heavy-duty nylon and features a belt loop for easy carrying. The Heretic Knives Pariah is an excellent choice for anyone looking for a reliable, durable knife that will withstand the most demanding tasks.

Seraphim

The Heretic Knives Seraphim knife is a large and imposing fixed blade with a unique design that is sure to turn heads. The blade is made from high quality stainless steel with a black finish and features a double-edged spear point design. The serrated edge on the top of the blade makes it ideal for slicing and piercing, while the plain edge on the bottom is perfect for chopping and slicing. The handle is made from black G10 with a finger groove for added comfort and grip. The pommel at the end of the handle features a lanyard hole for attaching to your belt or backpack. The sheath is also made from black nylon with a belt loop for easy carrying. The Heretic Knives Seraphim knife measures 12 inches in overall length with a 7 inch blade. The blade is full tang construction for strength and durability. This knife is definitely not for everyone, but if you are looking for a large and imposing fixed blade with unique styling, the Heretic Knives Seraphim is worth checking out.

Chimera

The Heretic Knives Chimera is a large, fixed blade knife with a black finish. The blade is made of high quality stainless steel and is full tang for strength and durability. The blade has a double edge and is very sharp. The handle is made of black G-10 material and is textured for a good grip. The handle also has a lanyard hole for attaching to your belt or backpack. The sheath is made of black Kydex material and is molded to fit the knife perfectly. It has a belt loop for carrying on your belt. This is an excellent knife for camping, hiking, survival, or self-defense.

Cleric

The Heretic Knives Cleric is a beautifully designed and crafted knife that is perfect for both self-defense and everyday carry. The blade is made of high quality stainless steel with a black finish and features a sharpened edge that is perfect for slicing and cutting. The handle is made of durable aluminum with a black anodized finish and has a comfortable grip that makes it easy to hold and use. The knife also includes a lanyard hole for easy carrying.

Manticore

The Heretic Knives Manticore is a large, fixed blade knife with a black finish. The blade is made of high quality stainless steel and is full tang for strength and durability. The handle is made of black G-10 with a lanyard hole for added security. The Manticore comes with a black Kydex sheath for easy and safe transport. This knife is designed for heavy duty use and can handle anything you throw at it. The blade is thick and has a sharp, serrated edge that can easily tackle any tough task. The handle is comfortable to hold and provides a good grip even when wet. The sheath is sturdy and keeps the knife securely in place. The Heretic Knives Manticore is the perfect knife for anyone who needs a reliable, tough tool that can get the job done. It’s great for camping, hunting, or any other outdoor activity where you need a dependable knife by your side.

Sleight

The Heretic Knives Sleight is a small, lightweight knife with a simple yet elegant design. The blade is made from high-quality stainless steel and is designed for everyday carry. The handle is made from durable G-10 material and features a comfortable grip. The Heretic Knives Sleight is a great choice for those who are looking for a reliable and stylish EDC knife.

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