Build the ultimate battle carbine by topping it with the Trijicon ACOG ECOS 4x32mm Scope. This combat-tested optic is ready for use in all close-quarter situations, thanks to its unique setup. The Trijicon ACOG ECOS 4x32mm Scope offers users a durable dual-sight setup that combines the time-tested ACOG with the company's proven RMR red-dot sight for accurate close-range target acquisition. External reticle adjustments are also available, allowing for tool-free use. Features Amber Crosshair 223 Ballistic Reticle Uses RM01 RMR red dot model Weight: 16.2 ounces Illumination powered by CR2032 battery Additionally, the Trijicon ACOG ECOS 4x32mm Scope al Mfg: Trijicon