The Bm'D lighweight asymmetrical carabiner is made of aluminum. It has a D shape particularly suited for connection to various equipment such as descenders or positioning lanyards. It's fluid interior design and Keylock system facilitate handling. The Bm'D carabiner has the TRIACT-LOCK automatic locking system. The sleeve is reinforced for greater front and lateral gate strength. Bm'D may be used with CAPTIV postioning bar to promote loading of carabiner ont he major axis, to limit the risk of rotation and to keep it integrated with the device.