Black Diamond Magnetron RockLock

1 review
5-star:   0
4-star:   0
3-star:   0
2-star:   0
1-star:   1



Large auto locking carabiner. Not worth this girl's…

Rating: rated 1.5 of 5 stars
Source: bought it new
Price Paid: 24 cdn


Large auto locking carabiner. Not worth this girl's money.


  • Magnetic auto lock


  • Too big
  • Difficult to release with one hand

I purchased this biner because of its size and the magnetic catch. I like a larger biner for a double line munter (as a backup plan in case something goes wrong with my Reverso). I thought it may pose a problem for ice but that was not the issue.

The magnetic catch is not an ergonomic fit for me. I have small to medium woman's hands and when I reach for release it is just out of my grasp. Only by millimetres! What a pain in the butt! I then have to release it without gripping the full biner in one hand. If you are a climber, you know that's a gong show! — and has the potential to be unsafe.

For now, I've problem solved this by putting this piece of gear in time out.  

For men — it's a very cool piece of kit designed more for you :)  I recommend it as the magnetic catch is cool and performs ok as long as it doesn't ice up.

Retailers' Descriptions

Here's what other sites are saying:

The Black Diamond Magnetron Rocklock Carabiner uses the power of magnets to reinvent the auto-locking carabiner. Magnetron Technology uses two magnetic arms in the gate and a steel insert in the carabiner's keylock nose to create an ultra-secure, self-clearing and redundant locking mechanism that can easily be used with either hand.


The Black Diamond Magnetron RockLock locking carabiner uses the power of magnets to give you the security of a locking 'biner with incredible ease of use.


The Black Diamond Magnetron RockLock Carabiner blends simplicity and security into a potent package that completely changes the carabiner game. A snag-free keylock nose perfectly rounds it out to make it great for any locking-carabiner duty. Innovative gate design uses two magnetic arms in the gate and a steel insert in the nose for super-secure, interference-free closure Keylock nose prevents snagging One-hand operable Square hinge end helps hold belay loop securely in place Slightly curved spine maximizes gate opening

- OMCgear

Black Diamond Magnetron RockLock CarabinersThe Black Diamond Magnetron RockLock Carabiners are an essential safety component for any climbing or rappelling enthusiast. With its trademark Magnetron technology, the gate of the carabiner uses two magnetic arms, with a steel insert in the key lock nose, to hold the load securely and to maintain an interference-free closure. This helps prevent rope snags, for added safety. It is operable with either hand, making it an essential item to have in an emergency, when both your hands may not be free. Designed with a curved spine, its gate opening is maximized to keep you securely in place, while providing the necessary balance. The original RockLock shape makes this carabiner ideal for belaying. The Black Diamond Magnetron RockLock Carabiner is a must-have addition to your climbing gear.

- SunnySports

The Black Diamond Magnetron RockLock carabiner uses a truly revolutionary gate that locks shut with magnetic tabs instead of a traditional screw gate. The advantages' Nothing to freeze shut in the winter or to clog up with sand, and you can operate the gate with one hand. Not to mention that this gate is significantly faster to open then traditional locking mechanisms. To top it all off, Black Diamond gave the RockLock carabiner a keylock nose that won't snag on gear, slings, or bolts when you tear down your anchor to head up the next pitch. Note: the locking mechanism comes in different colors (dark blue, light blue, green, or orange), so you might not get the blue that's pictured.