Many replica 552 and 551 holographic sights wash out in strong sunlight, this version gives a clear aim point even on a bright midsummer's day.
Theta Optics 551scope is powered by two AA batteries, The aim point can be switched between red for daylight and green for low light. The aim point can be adjusted for elevation and windage. It has also several degrees of brightness. The sight features a metal housing, which is designed to be mounted on a standard 22mm RIS rail.
The set includes: