Dagger Defense DD22M1 Red Dot Reflex sight- Reflex sight optic and substitute for holographic red dot sights This red dot comes with a high profile mount for your preference. Click-adjustable for variable brightness control Reticle color is red and green, brightness is 5 levels Tube Diameter: 1.0in/25.4mm, Weight: 6.4oz/181g, Length: 2.8in/70mm, Rail Size: picatinny 1 Lens Cleaning Cloth 1 CR2032 Battery 2 Hex Wrench 1 Product Instructions