Red Dot Sight, made by NcStar. For Weaver Mount only.

*LED (Light Emitting Diode) 100% safe for the eyes
*Anodized aluminum body
*Unlimited eye relief and field of view
*Seven position rheostat knob for multiple brightness settings
*Integrated weaver style mount
*Powered by three volt lithium battery (CR2032)
*Includes extra battery, lens covers, mounting tool
*Objective Diameter (MM): 45.00