America's Trusted Source for Premium Automatic Knives for Sale

An automatic knife is a folding knife that opens its blade automatically when the user presses a button, lever or switch on the handle. Unlike a manual folding knife, which requires the blade to be opened by hand, an automatic knife uses a spring-powered mechanism for fast, convenient one-handed deployment.

The two most common types are side-opening automatic knives and OTF knives. A side-opening automatic knife swings the blade out from the side of the handle, while an out-the-front, or OTF, knife deploys the blade through an opening at the front of the handle. Some OTF knives use a double-action mechanism that both deploys and retracts the blade with the same switch.

Automatic knives are available in a wide range of sizes, blade styles and materials for everyday carry, collecting, outdoor tasks and professional use. Laws governing the purchase, possession and carry of automatic knives vary by location, so buyers should review all applicable state and local regulations.

An automatic knife uses a spring-powered mechanism to open the blade when the user presses a button, lever or switch on the handle. When the knife is closed, the blade is held securely inside the handle while the internal spring remains under tension. Activating the opener releases the locking mechanism, allowing the spring to move the blade rapidly into the open position. A lock then engages to help keep the blade securely open until the user intentionally closes or retracts it.

There are two main types of automatic knives. A side-opening automatic knife swings the blade outward from the side of the handle, similar to a traditional folding pocket knife. An out-the-front, or OTF, knife deploys the blade through an opening at the front of the handle. Double-action OTF knives use the same sliding switch to both deploy and retract the blade, while single-action OTF knives deploy automatically but usually require the blade to be manually reset.

Automatic knives differ from assisted-opening knives because the automatic mechanism is activated directly by a button or switch on the handle. Assisted-opening knives require the user to begin moving the blade before the spring assists with the rest of the opening motion.

Regular cleaning, light lubrication and proper storage can help an automatic knife operate smoothly. Owners should also follow the manufacturer’s instructions and review applicable state and local laws regarding automatic-knife ownership and carry.

The primary difference between an automatic knife and an assisted-opening knife is how the blade is deployed.

An automatic knife (also called a switchblade) uses a spring that fully opens the blade when a button, lever, or sliding thumb switch is activated. Once the safety mechanism is disengaged, pressing the release instantly deploys the blade without the user manually moving the blade.

An assisted-opening knife, by contrast, requires the user to begin opening the blade manually using a thumb stud, thumb hole, or flipper tab. After the blade is partially opened, an internal spring assists and completes the opening motion. The blade cannot deploy from the closed position without the user first applying pressure to the blade itself.

Automatic Knife vs. Assisted-Opening Knife Comparison

FeatureAutomatic KnifeAssisted-Opening KnifeOpening MethodPush button, lever, or thumb slideThumb stud, thumb hole, or flipper tabManual Blade Movement RequiredNoYesSpring ActionOpens the blade completelyAssists after manual opening beginsSpeedExtremely fastFast after manual initiationOne-Hand OperationYesYesTypical LockButton lock or internal mechanismLiner lock, frame lock, button lock, or crossbar lockBest ForEveryday carry, tactical use, work, emergency situations, collectorsEveryday carry, utility work, general cutting tasks

How an Automatic Knife Works

An automatic knife stores spring tension while closed. Pressing the activation button or sliding the thumb switch releases the spring, causing the blade to open instantly and lock securely into place. Depending on the design, automatic knives may be:

• Side-opening automatic knives, where the blade swings out like a traditional folding knife.
• OTF (Out-the-Front) automatic knives, where the blade travels straight out of the front of the handle. Double-action OTF knives also retract using the same thumb switch.

Automatic knives are valued for their rapid deployment, reliable one-handed operation, and consistent performance.

How an Assisted-Opening Knife Works

An assisted-opening knife contains a spring that helps finish opening the blade, but it does not activate until the user manually starts the opening motion. After the blade moves several degrees, the spring takes over and rapidly opens the blade until it locks into place.

Because the blade must first be manually moved, assisted-opening knives are mechanically different from automatic knives.

Which Knife Is Better?

Neither design is universally better—the right choice depends on how you plan to use the knife.

Choose an automatic knife if you want:

• Instant push-button deployment
• Fast one-handed operation
• Reliable performance for everyday carry or professional use
• Side-opening or OTF automatic designs

Choose an assisted-opening knife if you prefer:

• A manual opening motion with spring assistance
• A familiar folding knife design
• A balance between traditional manual folders and automatic knives
• A knife for general everyday cutting tasks

Are Automatic Knives and Assisted-Opening Knives Legal?

Knife laws vary by state and local jurisdiction. In many areas, automatic knives are regulated differently than assisted-opening knives, and ownership, carry, or sale may be subject to specific laws. Assisted-opening knives are often treated similarly to manual folding knives, but regulations can still differ depending on where you live.

Always check your local and state knife laws before purchasing or carrying either type of knife.

Bottom Line

An automatic knife opens completely at the push of a button or thumb slide using an internal spring, while an assisted-opening knife requires the user to manually begin opening the blade before the spring assists with the rest of the motion.

If your priority is the fastest possible deployment and convenient one-handed operation, an automatic knife is the better choice. If you prefer a knife that begins opening manually but finishes quickly with spring assistance, an assisted-opening knife is an excellent everyday carry option.

The biggest difference between an OTF (Out-the-Front) knife and a folding automatic knife is how the blade opens.

An OTF knife deploys the blade straight out through the front of the handle using a thumb slide and an internal spring-powered mechanism. A folding automatic knife (also called a side-opening automatic knife) opens by swinging the blade out from the side of the handle after the user presses a button or activates a lever.

Both are automatic knives, meaning the blade opens automatically using a spring. However, their opening mechanisms, blade movement, handling characteristics, and overall design are different.

OTF Knife vs. Folding Automatic Knife Comparison

FeatureOTF KnifeFolding Automatic KnifeBlade MovementExtends straight out the frontPivots open from the sideActivationThumb slidePush button or leverDeployment SpeedExtremely fastExtremely fastRetractionDouble-action models retract automaticallyBlade is manually folded closedOne-Hand OperationYesYesCarry ProfileSlim and compactSimilar to a traditional folding knifeBest ForEveryday carry, tactical use, work, collectorsEveryday carry, utility work, outdoor use, collectors

What Is an OTF Knife?

An OTF (Out-the-Front) automatic knife features a blade that travels directly through the front of the handle instead of pivoting outward. Most modern OTF knives use a double-action mechanism that deploys and retracts the blade using the same thumb slide.

OTF knives are known for:

• Lightning-fast deployment
• Quick one-handed opening and closing
• Slim, pocket-friendly designs
• Modern engineering and precision mechanics
• Excellent everyday carry performance

Available in a wide variety of blade styles, handle materials, and premium blade steels, OTF knives are popular with everyday carry (EDC) enthusiasts, first responders, outdoor users, military personnel, and collectors.

What Is a Folding Automatic Knife?

A folding automatic knife uses an internal spring to automatically swing the blade open from the side of the handle when a button or lever is pressed. After use, the blade is manually folded back into the handle.

Because they resemble traditional folding knives, many users appreciate their familiar ergonomics and simple operation.

Folding automatic knives are commonly available with:

• Drop point blades
• Tanto blades
• Clip point blades
• Spear point blades
• Partially serrated or plain edges

These knives are valued for their reliability, strength, and versatility across a wide range of everyday cutting tasks.

Which Knife Opens Faster?

Both OTF knives and folding automatic knives deploy extremely quickly.

Modern premium models from reputable manufacturers are engineered for smooth, dependable deployment with minimal effort. In everyday use, the speed difference between quality OTF and folding automatic knives is generally negligible. Choosing between them is more about preferred opening style, ergonomics, and intended use than raw deployment speed.

Which Is Better for Everyday Carry?

Both designs make excellent everyday carry knives.

An OTF knife may be the better choice if you want:

• Straight-out blade deployment
• One-handed opening and closing
• A slim, modern design
• Quick access in confined spaces

A folding automatic knife may be the better choice if you prefer:

• Traditional folding knife ergonomics
• A familiar pocket knife feel
• Simple maintenance
• Strong blade lockup for everyday utility

Are Both Considered Automatic Knives?

Yes. Both OTF knives and folding automatic knives are classified as automatic knives because they use a spring-powered mechanism to deploy the blade automatically after the activation control is engaged.

The only difference is the direction the blade travels:

• OTF knives extend straight out the front.
• Folding automatic knives pivot open from the side.

Are OTF and Folding Automatic Knives Legal?

Knife laws vary by state and local jurisdiction. Because both designs are automatic knives, ownership, carry, and sale may be regulated differently depending on where you live.

Always review your local and state knife laws before purchasing or carrying any automatic knife.

Bottom Line

OTF knives and folding automatic knives both offer fast, one-handed automatic deployment, but they achieve it in different ways. An OTF knife sends the blade straight out of the front of the handle using a thumb slide, while a folding automatic knife swings the blade open from the side with the push of a button or lever.

If you prefer modern engineering, straight-line blade deployment, and automatic retraction, an OTF knife is an excellent choice. If you like the familiar feel of a traditional pocket knife combined with the convenience of push-button automatic opening, a folding automatic knife is likely the better fit.

No matter which style you choose, both provide reliable performance, convenient one-handed operation, and are available in a wide range of blade shapes, sizes, steels, and handle materials to suit everyday carry, outdoor use, work, and collecting.

The best automatic knife for everyday carry (EDC) is one that combines reliable deployment, a practical blade shape, durable blade steel, comfortable ergonomics, and a size that's easy to carry every day. While there is no single "best" automatic knife for everyone, the ideal choice depends on how you plan to use it and your personal preferences.

Many everyday carry enthusiasts choose either an OTF (Out-the-Front) automatic knife or a side-opening automatic folding knife because both offer fast one-handed deployment and dependable performance.

What Makes a Great Everyday Carry Automatic Knife?

When choosing an automatic knife for daily use, consider these key features:

Reliable Automatic Action

A quality automatic knife should deploy smoothly and lock securely every time. Precision-engineered springs and locking mechanisms help ensure consistent performance whether you're using the knife at work, outdoors, or around the house.

Practical Blade Length

For most users, a blade between 3 and 3.5 inches provides an excellent balance of cutting performance, portability, and control. Compact automatic knives with blades under 3 inches are also popular where a smaller everyday carry knife is preferred.

Durable Blade Steel

Blade steel has a major impact on cutting performance and maintenance.

Popular steels for everyday carry include:

• CPM S30V – Excellent edge retention, toughness, and corrosion resistance.
• Böhler M390 and M390MK – Premium steels known for exceptional wear resistance and long-lasting sharpness.
• D2 Tool Steel – Outstanding edge retention with high durability; requires basic care to prevent corrosion.
• 154CM – A well-balanced stainless steel offering excellent toughness and corrosion resistance.
• 440C Stainless Steel – Reliable corrosion resistance, easy sharpening, and solid all-around performance.

Comfortable Handle

An ergonomic handle improves grip and reduces hand fatigue during extended use. Materials such as aluminum, G-10, carbon fiber, titanium, and textured polymer provide durability while offering a secure hold in wet or dry conditions.

Secure Locking Mechanism

A dependable locking system keeps the blade securely open during use. Common lock types include button locks, plunge locks, and internal OTF locking systems designed for strength and reliability.

Pocket-Friendly Design

A deep-carry or low-profile pocket clip, lightweight construction, and slim handle make an automatic knife more comfortable to carry throughout the day.

OTF Knife or Folding Automatic Knife for EDC?

Both styles are excellent choices for everyday carry.

OTF Automatic Knives

An OTF knife may be the better option if you want:

• Straight-out blade deployment
• One-handed opening and closing
• Slim, compact carry
• Fast access in confined spaces

Double-action OTF knives are especially popular because the same thumb slide both deploys and retracts the blade.

Folding Automatic Knives

A side-opening automatic knife may be the better choice if you prefer:

• Traditional folding knife ergonomics
• Push-button automatic deployment
• Strong blade lockup
• Familiar pocket knife handling

Many users transitioning from manual folding knives appreciate the familiar feel of a side-opening automatic.

Choosing the Right Blade Shape

The best blade shape depends on how you'll use the knife.

• Drop Point – The most versatile choice for everyday cutting, utility work, and outdoor tasks.
• Tanto – Strong tip designed for piercing and demanding applications.
• Clip Point – Excellent control with a fine tip for detailed cutting.
• Sheepsfoot – Great for controlled slicing while reducing the chance of accidental punctures.
• Spear Point or Double Edge – Popular among collectors and users who prefer a symmetrical blade profile. Double-edge blades may be restricted in some areas, so always check local laws.

Other Features to Consider

Many modern automatic knives include additional features that enhance convenience and performance, such as:

• Reversible or ambidextrous pocket clips
• Glass breakers
• Lanyard holes
• Textured handles for improved grip
• Corrosion-resistant blade coatings
• Lightweight aluminum or titanium construction

How to Choose the Best Automatic Knife

Ask yourself these questions before buying:

• Will you carry the knife every day or only occasionally?
• Do you prefer an OTF or side-opening design?
• Which blade shape best fits your cutting tasks?
• Is lightweight carry a priority?
• Do you want premium blade steel for maximum edge retention or an easy-to-maintain stainless steel?

Answering these questions will help narrow your options and ensure you choose a knife that fits your needs.

Bottom Line

The best automatic knife for everyday carry is one that matches your daily tasks, feels comfortable in your hand, and delivers reliable automatic deployment every time. For most users, a quality automatic knife with a 3- to 3.5-inch blade, premium stainless steel, secure locking mechanism, and ergonomic handle offers the ideal combination of performance and portability.

Whether you choose a double-action OTF knife for its fast deployment and compact design or a side-opening automatic knife for its traditional feel and push-button simplicity, investing in a well-built automatic knife ensures dependable performance for everyday carry, work, outdoor adventures, and general utility.

At Southern Sporting Goods, we carry a growing selection of automatic knife brands ranging from premium American-made manufacturers to trusted value-focused companies. Whether you're looking for an OTF (Out-the-Front) automatic knife, a side-opening automatic knife, a classic Italian switchblade, or an everyday carry automatic knife, you'll find options to fit a wide range of budgets and preferences.

Our inventory includes automatic knives from respected brands such as:

• Microtech Knives
• Venom USA™
• AKC (Automatic Knife Company)
• Gerber
• Smith & Wesson
• Bear & Son Cutlery
• Colonial Knife Company
• Mantis Knives

Our selection features everything from affordable automatic knives for first-time buyers to premium, American-made models designed for collectors, professionals, and everyday carry enthusiasts.

Automatic Knives for Every Style and Budget

We offer a wide variety of automatic knife styles, including:

• Double-action OTF knives
• Side-opening automatic folding knives
• Italian switchblade knives
• Swinguard automatic knives
• Leverlock automatic knives
• Compact automatic pocket knives
• Everyday carry (EDC) automatic knives
• Tactical automatic knives

You'll also find popular blade styles such as drop point, tanto, clip point, bayonet, spear point, sheepsfoot, and double edge, along with premium blade steels including M390, M390MK, CPM S30V, D2, 154CM, and 440C on select models.

Why Shop Southern Sporting Goods?

When you shop with Southern Sporting Goods, you'll find more than just a large selection of automatic knives. We focus on offering quality products backed by dependable customer service and fast shipping.

Customers choose us for:

• Wide selection of OTF and side-opening automatic knives
• Premium and budget-friendly options
• Trusted brands from around the world
• Fast U.S. shipping
• New arrivals added regularly
• Secure online shopping
• Knowledgeable customer support

We're Always Adding New Automatic Knife Brands

Our inventory is constantly expanding as new models become available. We regularly add new automatic knife brands, the latest product releases, limited-edition knives, and exclusive models, giving customers access to one of the fastest-growing selections of automatic knives online.

If you don't see the brand or model you're looking for today, check back often. We update our inventory throughout the year with new automatic knives, OTF knives, folding automatic knives, and collectible releases from leading manufacturers.

Bottom Line

Whether you're searching for a premium Microtech automatic knife, an affordable Venom USA™ OTF knife, a classic AKC Italian automatic knife, or dependable automatic knives from brands like Gerber, Smith & Wesson, Bear & Son, Colonial Knife Company, or Mantis, Tactical Sporting Goods offers a carefully curated selection for everyday carry, outdoor use, work, and collecting.

As we continue to grow, we're committed to adding new brands and expanding our selection so you can always find the latest automatic knives in one convenient place.

Yes, automatic knives are legal in many parts of the United States, but the laws vary by state, local jurisdiction, and how the knife is owned, carried, sold, or transported. Because regulations differ across the country, there is no single answer that applies everywhere.

Automatic knives—also known as switchblades, OTF (Out-the-Front) knives, and side-opening automatic knives—are legal for civilian ownership in most states, although some states or local jurisdictions impose restrictions on blade length, concealed carry, public carry, or specific locations where knives may be prohibited.

Do Automatic Knife Laws Vary by State?

Yes. Every state has its own knife laws, and some cities or counties may also have additional regulations.

Depending on where you live, laws may address:

• Ownership of automatic knives
• Carrying an automatic knife openly or concealed
• Blade length restrictions
• Age requirements for purchase
• Restrictions in schools, government buildings, airports, and other prohibited locations
• Transportation across state lines

Because laws can change through new legislation or court decisions, it's important to verify the current regulations before purchasing or carrying an automatic knife.

What Does Federal Law Say?

Federal law does not create one nationwide rule for owning or carrying automatic knives inside your state. Instead, the Federal Switchblade Act primarily regulates certain aspects of interstate commerce, importation, and mailing, while state and local laws generally determine whether automatic knives may be owned or carried where you live.

How Can I Check My State's Automatic Knife Laws?

Before purchasing or carrying an automatic knife, you should review the laws that apply in your state and local area.

To make this easier, Tactical Sporting Goods provides a state-by-state automatic knife law guide that can help you research current regulations before you buy.

View our Automatic Knife Laws guide here:

https://www.tacticalsportinggoods.com/pages/automatic-knife-laws

Why It's Important to Know Your Local Knife Laws

Understanding your state's knife laws helps ensure you:

• Purchase a knife that is legal where you live
• Carry your knife responsibly
• Avoid unintended legal issues while traveling
• Stay informed about changes to state and local regulations

Because knife laws continue to evolve in many states, checking the current rules before buying or carrying an automatic knife is always the best practice.

Bottom Line

Automatic knives are legal in many U.S. states, but the rules vary depending on where you live. Ownership, carry, blade length, and transportation laws are determined by state and local regulations, so it's important to verify the laws that apply to your location before making a purchase or carrying an automatic knife.

For the latest information, visit Tactical Sporting Goods' Automatic Knife Laws page to review state-by-state regulations and help ensure you're making an informed purchase.