Hawke Optics XB SR 3x32 Crossbow Scope, Black, With Rings - 1221211 layer fully multi-coated optics for excellent clarity. 1 inch mono-tube chassis for superior strength. Designed for speeds of 340 feet per second. Glass etched reticle with red and green illumination. Rheostat on saddle offers 5 levels of brightness. 1/2 MOA low profile no-snag finger tip turrets. Fast focus eyebell and high torque zoom ring