Nikon M-223 XR (743)  AR Mount w/ 20 MOA Slope (Black)
The M-223 XR Mount was developed for use with Nikon's M-223 series of riflescopes. Featuring lightweight yet sturdy alloy construction, this mount fits Picatinny rails found on most flattop ARs, as well as Weaver-style bases. The mount offers a built-in 20-degree minute of angle (MOA) incline to maximize elevation for extreme long range shooting.The M-223 features lightweight and sturdy alloy construction.