Yeah I would just buy an AT rifle for 1k more. But according to the link belowm, M24 is a basically custom rifle though.
http://blog.blackriflecoffee.com/remington-defense-m24/
"Hand-built by the same craftsmen who have been manufacturing the M24 Sniper Rifle as part of the M24 Sniper Weapons System."
https://www.eurooptic.com/Remington-Defense-M24-762-NATO-24-Rifle-86715.aspx