In my latest novel, The Last Bartender, the protagonist, Justin Gardiner, is a former Army sniper, working behind a neighborhood bar after returning home from two tours in Afghanistan. His weapon, an old M24—based, like the newer model, on the venerable Remington 700—returns home with him, and appears several times over the course of the story.
This video describes the features of the M24-A2. They seem to have upgraded the optics considerably (Justin's M24 has a fixed-power (10X) scope), and the stock looks like it has a few more bells & whistles compared to the previous model, but otherwise it looks quite similar to the one used in the story.
The Last Bartender is now available as a Kindle E-Book.