Axcel ArmorTech Vision HD 5 Pin - .01" Black Manufacturer: Axcel. Number of Pins: 5 OR 7. Pin Diameter: .01" or .01??Ñ Fiber. Pin Color: Multi Fiber Length: N/A Aperture Diameter: 2 Material: Aluminum Color: Black Hand: Right and Left Hand Weight: N/A,Features: Harmonic Damper. Interchangeable RH/LH. Adjustable 2nd and 3rd Axis. Micro adjust each pin. True Center Vision supplies circular sight picture even when slightly off center. Armor Fiber Technology. No exposed fibers. Tool-less windage and elevation thumb locks.