Best Locking Carabiners for 2024

The Petzl Attache stands out as our top overall pick for locking carabiners. Crafted with versatility and efficiency in mind, it serves wonderfully across various climbing activities. Lightweight yet durable, it sports a pear-shaped HMS design that facilitates easy clipping and unclipping. The screw-lock mechanism operates seamlessly, enhanced by a red visual indicator that alerts you when the gate is unlocked. This feature adds an extra layer of safety, making the Attache particularly suitable for belay or anchor use. Users appreciate its fine craftsmanship, usability, and light weight, attributes that make it a must-have in any climber's gear.

The DMM Rhino earns its runner-up position through a combination of exceptional durability and innovative design elements. Notably, its unique horn shape prevents cross-loading, an invaluable feature for climbers using belay devices like the GriGri. The carabiner's robust construction promises longevity, while the screw-lock mechanism is reliable and straightforward to use. Despite being slightly heavier than some of its counterparts, the DMM Rhino’s security features make it an excellent choice for serious climbers seeking both reliability and safety.

If you're climbing on a budget but don't want to compromise performance, the CAMP USA Photon Lock is your go-to option. This carabiner offers excellent value, balancing affordability and high performance. Lightweight and versatile, it supports various climbing needs while its compact design is ideal for weight-conscious climbers. The Photon Lock's screw-lock mechanism guarantees secure usage, with the carabiner performing admirably in multiple tests despite its budget-friendly price. It’s perfect for climbers who want quality gear without breaking the bank.

For those who prioritize safety and durability while belaying, the Edelrid HMS Bulletproof Triple FG is your best bet. Featuring a stainless steel insert, it significantly minimizes wear from rope friction, thereby extending the carabiner's lifespan. The triple-action locking mechanism adds a critical layer of security, requiring three distinct actions to unlock it. This specialization makes it particularly suitable for belay scenarios where safety is paramount. The Edelrid HMS Bulletproof Triple FG is indispensable for anyone looking to enhance their belay setup with a durable and secure carabiner.

When reducing weight is essential, the DMM Phantom stands as the top choice. Weighing just 42 grams, it is the lightest locking carabiner that we've tested, all without sacrificing performance. Its compact size and impressive strength make it an excellent option for alpine climbing and other activities where every gram counts. Despite its minimal weight, the DMM Phantom ensures smooth operation and reliable security through its screw-lock mechanism, making it ideal for climbers who need to minimize gear weight without compromising on safety.