What component is located on the right side of the receiver to facilitate disassembly?

The disassembly lever is specifically designed to facilitate the disassembly of the M9 service pistol, and it is located on the right side of the receiver. This lever plays a crucial role in the disassembly process, allowing the user to separate the slide from the frame safely and effectively. When the lever is rotated, it releases the locking mechanism that holds the slide in place, making it easier for the operator to maintain the weapon by cleaning or replacing components as needed.

The other components mentioned serve different functions; for instance, the safety selector is involved in controlling the operation of the firearm's safety mechanism, while the slide release is used to lock or release the slide during operation but is not specifically for disassembly. The trigger guard serves to protect the trigger but does not assist in disassembly at all. Understanding the purpose of each component is essential for proper maintenance and handling of the M9 service pistol.