Any update on when these might be due on the market? They look good for crucial clips:
"The new gate has been built onto our premium Shadow carabiner back and is operated by flicking a small metal switch that alternatively engages and disengages the gate in the closed position."
http://www.dmmclimbing.com/productsDetails.asp?pid=1&pid2=214
DMM have been having problems with them. Simon Marsh of DMM posted this on UKC in March last year:
"They are not available yet - we have actually been looking at finalising this carabiner for over two years now.
It has been quite complex getting a consistent action on the gate so that it feels like a normal carabiner whilst the locking switch works smoothly after repeated abuse.
I was actually playing with a pre-production sample this morning and the project designer is sure that he is very close to signing this project off - samples are undergoing long term testing now.
It is not possible to fit the mechanism in a fully bent gate because there is not enough linear length/volume inside the gate - but the large recess on the front side of the gate makes clipping the rope really easy.
Regards
Simon
DMM"
http://www.ukclimbing.com/forums/t.php?t=398761