From the DMM Professional website:
It has come to our attention that the locking mechanisms of some DMM locking carabiners are developing a dysfunction.
In a small percentage of carabiners, the interaction between the internal coil spring (which gives the gate it’s closing action) and the spring pusher (the component that holds the spring against the carabiner body) may cause the spring pusher to displace, potentially preventing the gate from closing
or the mechanism from locking completely.
This has raised obvious safety concerns, and we are taking this step to ensure the safety of the users of DMM carabiners. This only affects certain batches of the carabiners listed below:
See the pdf file for the details at the following link:
http://dmmprofessional.com/articles/2015/09/11/important-dmm-product-safety-warning/
It has come to our attention that the locking mechanisms of some DMM locking carabiners are developing a dysfunction.
In a small percentage of carabiners, the interaction between the internal coil spring (which gives the gate it’s closing action) and the spring pusher (the component that holds the spring against the carabiner body) may cause the spring pusher to displace, potentially preventing the gate from closing
or the mechanism from locking completely.
This has raised obvious safety concerns, and we are taking this step to ensure the safety of the users of DMM carabiners. This only affects certain batches of the carabiners listed below:
See the pdf file for the details at the following link:
http://dmmprofessional.com/articles/2015/09/11/important-dmm-product-safety-warning/