TruGlo Tru Site Xtreme Compact Micro TFO. Smaller version of the award-winning TRU-SITE XTREME SERIES.Ultra-fine click adjustment for windage and elevation. Tool-less design. Extra-long, protected, wrapped fibers. Precision pin alignment eliminates distortion. One-piece head reduces vibration. Aperture has a 1.6" inner diameter. Compact circular field of view. Glow-in-the-dark shooter's ring helps align peep sight. Adjustable level with two vertical bars. Level is illuminated by luminescent shooter's ring. Reversible bracket for greater vertical adjustability. Adjustable for left and right handed shooters. Available with light or TFO pin. Lighted models are designed to reduce unwanted pin glare.