Compound sight from Axcel. Key features: Extension bar of layered ultra high modulus carbon for improved strength and torsional rigidity. Increased windage adjustment provided by #10-32" screw (vs. standard #6-32). Wedge lock attachment knob mounts your sight securely, with large area of contact with the sight bar. Simple, click on/off locking on windage and elevation prevents movement and unintentional adjustment. Adjustment knobs designed for ease and comfort of use - even in challenging weather conditions. Selection of most popular metal sight tapes included. Technical specifications: Handedness: Left and Right-Handed models. Extension length: 6” Vertical bar length: 2.875" adjustable range Sight pin thread: 10-32 (standard compound scope) Clicks per inch: 0.00156" per click.