TruGlo Tru-Brite sight opens up your sight picture while maintaining sloped aluminum sidewalls for increased strength and cover from glare and reflection. Dual-Color illumination allows you to select a red or green reticle to obtain better contrast against your target. features compact design, 34mm x 24mm window, unlimited eye relief, wide field of view, anti-reflective coating on target side, Parallax free at 30 yards and integrated Weaver-style mounting system.