A universal mounting mechanism for mounting a telecommunications chassis to a telecommunications fixture includes a mounting bracket defining a rear portion for mounting to the fixture and a front portion for slidably receiving the chassis, the front portion including a latch opening. A locking spring is configured for mounting to the chassis, the spring configured to flex laterally to snap in to the latch opening. A release handle is configured to be slidably mounted to the chassis, the release handle defining a deflection tab for moving the locking spring out of the latch opening when the handle is slid rearward to forward. A cover is configured to be mounted to the chassis, the cover defining a deflection ramp for interacting with the deflection tab of the handle to move the deflection tab laterally to contact the spring when the release handle is slid.