7cm standard quick release safety nato rail is part of our QR-Handles, and it can be attached to any two 1/4-20 holes via (2) 1/4"-20 screws (included) to provide mount for QR-Handles. It features spring loaded pins on both ends to prevent accidental removal. Compatible with our Slide Mount, also w/ RED Epic/Scarlet, Black Magic Camera and so on, and other third party accessories.