Rated 5 out of 5 by Todd The best for rope ascension and belays
In jumaring up lines in caves, etc I have always had issues with my waist carabiner rotating while unweighted and moving up the rope, and then catching and crossloading. I had to try this as soon as I saw it and it answered all my wishes. Great for stability during rope ascents, and I love it for belaying too. My only gripe is it doesn't have a large enough bottom loop to work well on my BD alpine bod harness. For beginners to belaying etc, I also love this as it eases my mind with its lack of crossloading potential. My young daughters exclusively use this on their harness when I take them out.
January 7, 2015
Rated 5 out of 5 by eric Overall: exccellant
Working at a rock gym I use it quite often and it has been great. I do not have to worry about it cross loading or coming unscrewed ever.
November 14, 2014
Rated 5 out of 5 by Levi Excellent Edition
Recently picked up this to update an old locker and fell in love with it. I have had my gate come unlocked multiple times while belaying and now I don't have to worry about it.
The magnets seem very solid and the whole piece of equipment is very well done. I'll be burning up my other lockers on rappels for an excuse to move my collection to magnetrons.
July 20, 2014
Rated 5 out of 5 by Anson One of the safest out there, IMO
Just ordered this the other week and I can't say how much I love it. No biner is foolproof, now but I'm a lot less worried about a rookie belayer cross-loading the biner or forgetting to lock the gate - if it's closed, it's locked. It's easy to use with one hand. For one of the most frequently used pieces of gear, it's totally worth the price. I can't believe I bothered with screwgates for so long. From now on, all my lockers are going to be Magnetron.
November 25, 2013
Rated 4 out of 5 by James Hunter Found a weakness
Took on daytrip down Spry Canyon, Zion, 12 raps over the course of the day. Fine sand in the canyon caused 2 problems:
1. locking mechanism would stick shut requiring me to de-glove to use my thumbnail to pry open
2. sandy rope (unavoidable in slot canyons) burned a groove about 1/3 the overall thickness of the beaner
I haven't had problems inside or on clean rock/face climbing and in that environment are awesome, hence warrenting the 4/5 rating still, but I was a bit bummed how poorly it performed for technical canyoneering.
November 22, 2013
Rated 5 out of 5 by Eric Excellent, no fuss carabiner
I was looking for something to get away from double locking spring loaded biners. This delivered. I was a little suspicious because it's so different and looked too easy to use online. Truth is, it is easy to use. It's also very safe as far as I can tell. If your hesitant on getting one, don't be... it's well worth it
October 29, 2013
Rated 5 out of 5 by jason King of Locking Carabiners
I bought one of these mostly out of curiosity. I thought it would be just another silly feature. After a recent trip to the Wind Rivers, I quickly realized this biner was awesome! It's so fast to get in and out of on rappels! You just let go of the gate and your locked! No constantly checking to see if your screwgate has once again come unscrewed. You're good to go. The gridlock feature is a two step process to get on your belay loop, but if you leave it there while climbing, you don't have to worry about it again. No cross loading too which is huge!
July 9, 2013
Rated 5 out of 5 by Stanislav Awesome carabiner
The best Gridlock Carabiner I ever used. The highest quality and security. First time I saw it I thought that it is not very secury, but as a QA engineer I tried to open it with the rope in all possible ways. It is impossible! Now you should never forgot to screw your screwgate carabiner. It's a little bit expensive against other models, but every $ you spend on this carabiner worth it!
June 21, 2013