Perfect for anyone that doesn't like to sacrifice. The 558 is compatible with all Gen I-III night vision devices and features an adjustable, locking, quick-detach mount that offers instant removal.

Specifications:
Dimension: 5.6" X 2.2" X 2.9"
Weight: 13.8oz
Water Resistant: 33ft (10m)
Color: BLACK
Mount: Quick Detatch fits both 1" Weaver and Mil-STD -1913 Rail
Brightness: 30 Settings (10 for night vision)
Power Source: 2 x AA Batteries
Battery Life: up to 2500 continuous hours (lithium) or 2200 continuous hours (alkaline) at nominal setting 12
Reticle: 68 MOA ring with 1 MOA dot
Night Vision Compatible: YES