Monstrum Beast 30mm Tube Rifle Scope Second Focal Plane FIB02 Daylight Bright Reticle Black. Features a fiber optic reticle with a fiber optic tube that runs along the back of the crosshair to channel light from an LED light source to the center of the reticle. This allows it to generate a daylight bright center dot many times brighter than those found in more commonly used etched or wire illuminated reticle systems. Specifications for Monstrum Beast 4-12x44mm 30mm Tube Rifle Scope Second Focal Plane: Manufacturer: Monstrum Objective Lens Diameter: 44 mm Magnification: 4 - 12 x Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Color: Black Battery Type: Lithium Metal CR2032 Features of Monstrum Beast 4-12x44mm 30mm Tube Rifle Scope Second Focal Plane A premium lens coating that improves light transmission over previous generation scopes providing our clearest and brightest sight picture yet. Package Contents: Monstrum Beast 4-12x44mm 30mm Tube Rifle Scope Second Focal Plane Monstrum SBA41244B-FIB02: Beast 4-12x44mm 30mm Tube Rifle Scope Second Focal Plane FIB02 Daylight Bright Reticle Black