Accepts 41mm lens; Sight Light Included; 12 inches of fiber optics are protected within CBE's Blade Pin design; Interchangeable Fluorescent Peep Alignment Rings - Comes installed with Green; Red, Yellow, and Gray Included; Sliding Rheostat Cover for Optimized Pin Brightness in All Lighting Conditions; Ability to Set Up to Two Floating Pins with Multiple Indicator Pointers; Lightweight Design - Carbon Fiber Extension Dovetail Sight Bar with Ball Detent and "Click" on the Carbon Bar Position; Quiver Mounting Position on Mount; Hybrid Elevation Adjust; Rapid Drive for Fast Adjustments