The Robinson Armament Co. XCR is a multi-caliber, gas piston weapon system developed by Robinson Armament Co. for U.S. Special Operations Command (SOCOM) to satisfy the requirements of the SOF Combat Assault Rifle competition. The XCR is now being offered to law enforcement, the military and general public.
The model itself has some basic materials included and is quite detailed. It would be suitable for use as a base for Normal maps & AO bakes.
The preview images are rendered with 3ds Max's Nitrous in-viewport renderer. The .max file also includes the light setup used for the renders.