Axcel 5 Pin .019 Fiber Armortech HD Hunting Sight (Black) Model: AXAT-D519-BK. Pins: 5. Pin Diameter: .019 in. Armor Fiber Technology offers 100% protection to fibers . Pivot lock is engineered to keep sight pin from vibrating loose. Windage knob with 20-clicks-per-revolution adjustability. Includes a Mathews&reg; harmonic damper. Compatible with left- or right-hand bows. Limited lifetime manufacturer's warranty.