Special carabiner designed for helicopter air rescue, which allows quick separation under load.
However, this carabiner requires special care....

In paragliding, the Quick-Out allows you to ditch the wing when using steerable reserve parachutes.

Breaking load: 4000 DaN, individually tested at 2000 DaN.
Locking with double opening system.
Lifetime: 8 years with no limit of flight hours.
Forged Titanal case, insert made of high resistance aluminium alloy 7075 T6.
Weight : 200 g / pcs.

For more information, please read this article.