Large diameter, CNC-machined front sight that incorporates a light gathering fiber optic rod for high visibility and faster sight acquisition, even in poor lighting. Universal design fits most shotguns. FEATURES: ? The industry?s favorite bead replacement. ? Available in metal or ultra-tough composite. ? Fiber diameter is .078". ? Fiber length is 0.5". ? Universal model is metal and includes different size mounting screws. Fits: Universal thread size