The used Accessory Mount for Ronin 2 from DJI utilizes a quick release design allowing tool-free installation of itself onto the Ronin 2 Grip.
The Accessory Mount comes with a 1/4" screw at the center of the top surface, one 3/8"-16, two 1/4"-20, and four M4 screw holes to mount compatible accessories such as universal arms, wireless video transmitters, and field monitors.