Back Lock Knives

A back lock folding knife holds its blade open with a rocker bar that runs along the top of the handle. When the blade swings open, a hooked lug on the front of that bar drops into a notch cut into the blade's tang, and a spring keeps it seated. To close the knife, you press a release cutout on the handle's spine, lifting the lug clear.

Few folding locks are as simple or as trusted. With the lock bar sitting behind the blade rather than beside it, grip pressure can't push it out of engagement, which is why lockbacks have long been the choice for hunting folders and hard-working pocket knives.

Shop Back Lock Knives

Explore our back lock knives in traditional and modern folding designs. Compare lock placement, blade profiles, handle materials, opening methods, and overall size to find a lockback suited to everyday carry, outdoor use, collecting, or gifting.

When comparing back lock knives, consider:

• Lock placement: Compare traditional rear-lock and mid-lock designs based on how you prefer to open and close the knife.
• Blade size: Consider blade length, closed length, and overall weight based on your intended use and carry preferences.
• Blade profile: Compare clip point, drop point, and other blade shapes according to the cutting tasks you expect to perform.
• Handle construction: Look at traditional bolsters and natural materials or modern scales, liners, and pocket clips.
• Opening method: Check for nail nicks, thumb studs, thumb holes, or other opening features included on the individual knife.

Browse the collection below to compare back lock knives by blade design, handle construction, lock placement, and overall size.

What Is a Back Lock Knife?

Back lock folding and locking back folding knives are commonly used for this type of mechanism. Product terminology can vary between manufacturers, so individual designs should be checked for their specific locking construction 

The concept is old. Variations appeared on European folding knives centuries ago, and the design became an American standard after the Buck 110 Folding Hunter arrived in the 1960s. That knife set the template many back lock folding knives still follow: a heavy clip-point blade, brass bolsters, wood scales, and a release near the rear of the handle.

How the Back Lock Knife Mechanism Works

The back lock knife mechanism has five working parts:

1. Rocker bar: a steel bar lying along the handle spine, pivoting on a pin roughly at its midpoint.
2. Lug: a hooked tooth on the front end of the rocker bar.
3. Blade notch: a matching cutout in the back of the blade's tang.
4. Backspring: a spring beneath the rocker bar that pushes the lug downward.
5. Release cutout: an exposed section of the rocker bar on the handle's spine.

When the blade opens fully, its notch comes under the lug, and the backspring snaps the lug down into it. The blade is now trapped between the lug behind and the pivot in front. Pressing the release cutout pivots the rocker bar like a seesaw, lifting the lug out of the notch so the blade can fold.

That audible "snap" on opening is useful: it's the lug seating. A silent opening means something is blocking the notch.

Rear Lock or Mid-Lock?

Where the release sits changes how the knife handles.

Rear lock

The release is near the butt of the handle, as on most traditional designs. It's easy to find and hard to press accidentally, but it usually takes two hands to close: one to press the release, the other to fold the blade.

Mid-lock

The release sits near the middle of the spine, where your index finger or palm can reach it. Many can be closed one-handed, and the shorter rocker bar makes the knife slightly more compact. The trade-off is that a hard grip over the release can occasionally disengage it, so it pays to learn where your hand rests.

If you mainly want a traditional back lock knife for hunting or gifting, a rear lock suits the style. For a knife that opens and closes during a busy day, a mid-lock is more convenient.

Back Lock vs Liner Lock

Back locks and liner locks use different locking mechanisms, so each has different construction and handling characteristics.

• Back lock: A rocker bar positioned along the handle spine engages a notch in the blade tang. The release is usually located at the rear or middle of the handle.
• Liner lock: A spring-like section of an internal liner moves behind the blade tang to hold the blade open. The release is located inside the handle.

Back locks are common on traditional folding knives and many hunting folders, while liner locks are widely used on modern folding knives designed around compact construction and one-handed operation.

There is no universal strength ranking based only on lock type. Lock performance depends on the mechanism's geometry, materials, manufacturing, and overall knife construction.

Choosing a Back Lock Pocket Knife

Size

A 2.5–3.5 inch blade suits everyday carry. Hunting lockbacks often run 3.5–4 inches, which gives field-dressing reach but a heavier, longer closed knife.

Traditional or modern

A traditional back lock knife has bolsters, natural handles like wood, bone, or stag, and no pocket clip; it's usually carried in a pocket or belt pouch. Modern versions use G-10 or Micarta scales, pocket clips, and thumb studs or holes for one-handed opening.

Weight

Brass bolsters and liners look good and add durability but also add weight. Open-backed and synthetic designs carry lighter.

Blade

Clip points and drop points dominate; Damascus blades are chosen as much for their pattern as their performance.

The best back lock knives are the ones with a lug that seats fully with a clear snap, no blade play when locked, and a release placed where your hand expects it. If you want a pocket knife with back lock security for daily use, prioritise a mid-lock with a pocket clip; for hunting, a larger rear-lock design suits the job.

Closing a Back Lock Safely

The rocker bar snaps back hard once the blade clears it, so fingers resting in the release cutout can be pinched, and the blade folds quickly once the lug lifts.

• Press the release with your thumb or palm, not your fingertip inside the cutout.

• Fold the blade with your other hand, holding the spine rather than the flat.

• Keep every finger out of the channel the edge travels through.

Care for a Back Lock

Keep the notch clean

Lint and grit collect in the blade notch and under the lug, stopping it from seating fully. If you don't hear the snap on opening, clean the handle channel with compressed air.

Check the lug seating

Open the knife and look along the spine. The rocker bar should sit flush with the handle. A bar that sits proud of the spine means the lug hasn't fully engaged.

Oil sparingly

A drop at the pivot and the rocker pin keeps the action smooth. Excess oil in the notch attracts debris.