Black Diamond RockLock Magnetron Carabiner

The RockLock Magnetron combines the spacious HMS shape climbers trust with Black Diamond's innovative magnetic auto-locking technology. It offers the speed and convenience of one-handed operation while automatically locking every time the gate closes, making it an excellent choice for belaying, rappelling and building anchors.

Consider another option if:

• You prefer the simplicity of a traditional screwgate.
• You're looking for the lightest possible locking carabiner.
• You primarily need a compact locker for personal anchoring.

• Sport climbing
• Trad climbing
• Multi-pitch climbing
• Belaying
• Rappelling
• Building anchors
• Gym climbing

Magnetron™ Auto-Locking Technology

Two magnetic gate arms automatically lock every time the gate closes, providing fast operation without a screw sleeve or twist mechanism.

One-Handed Operation

The gate can be opened and closed quickly with either hand, making clipping and belaying more efficient.

Large HMS (Pear) Shape

The generous basket provides excellent rope management and easily accommodates belay devices and Munter hitches.

Keylock Nose

A snag-free nose prevents the carabiner from catching on ropes, slings and anchor hardware.

Square Hinge Design

Keeps the belay loop properly positioned for improved stability while belaying.

Hot-Forged Construction

Reduces unnecessary material while maintaining excellent strength and durability.

What is Magnetron Technology?

Magnetron Technology replaces a traditional locking sleeve with two independent magnetic gate arms that automatically engage when the gate closes, creating a secure self-locking mechanism.

Is the RockLock Magnetron suitable for belaying?

Yes. Its large HMS shape is specifically designed for belaying, Munter hitches, rappelling and building anchors.

Does it lock automatically?

Yes. Every time the gate closes, the magnetic locking system engages automatically without requiring any additional action.

Can it be operated with one hand?

Yes. That's one of its biggest advantages over traditional locking carabiners.

Is it compatible with all belay devices?

Yes. The spacious RockLock basket fits virtually all modern belay devices.