The sight/mount are "as new", used only once. Unable to distinguish between NIB. Additional photos upon request. Included is all original packaging. Current price $756.60. Will sell for $650.00. Free shipping. If you have any questions, please feel free to ask. Thank you.
From the Aimpoint website:
The Aimpoint® CompM4s sight, with low battery compartment, belongs to the CompM4 series sights which are the finest sights Aimpoint has ever produced. Improvements include improved energy efficiency that provides up to 8 years of continuous use from a single AA battery!