Triple colour reflex sight allows users to select from Red, Green or Blue dots for user preference and environment. Flip-up lens covers help protect lenses from debris and for storage. Cantilever mount allows the reflex sight to be mounted forward on M4/M16/AR-15 upper receiver.
• Unlimited eye relief for flexible mounting
• Black anodized aluminum construction
• Three brightness settings for the Red, Green, Blue Dots
• Includes 30mm Cantilever Weaver Style Mount for mounting onto most Weaver/Picatinny style rails
• Red, Green, and Blue LEDs (Light Emitting Diode) 100% safe for the eyes
• Includes battery, plus a spare battery and mounting tools
• Aluminum body, powder coated black
• 1x magnification
• 35mm objective lens diameter
• Dot size: 3 MOA
• Click value at 100 yards: 1 MOA
• Weight: 8.6 oz. Length: 5"
Model: NcStar DRGB135
Great video that compares this sight to Vortex: https://www.youtube.com/watch?v=lmVvxHD7SAs