What is the first step in mounting the MDO to the M240?

Opening the two locking levers is the initial step in mounting the MDO to the M240. This action is essential because it allows the mounting mechanism to be in the proper configuration for installation. The locking levers typically secure the sight in place, and opening them creates the necessary clearance to attach the MDO securely to the weapon system.

By starting with this step, you ensure that the subsequent actions, such as aligning the sight base and finalizing the connection, can be performed smoothly and correctly. For a proper mount, it's crucial to follow the correct order of operations, as any misstep could compromise the stability and accuracy of the sight on the firearm.

Other steps like removing the old MDO, connecting the power supply, or attaching the sight base occur after the initial securing of the device, emphasizing the importance of starting with the locking levers to facilitate a successful mounting process.