Other red dots are made for competition. The Vortex Defender-XL Micro Red Dot Sight is built to win. Target to target. Stage to stage. The ultra-wide sight window enhances field of view, delivering quicker target acquisition, faster, more accurate follow-up shots, and greater flexibility in unconventional shooting positions. Motion activated. Constructed to withstand unexpected drops and the rigors of dynamic shooting. Combined with a bright, adjustable dot, it adapts to any lighting conditions and helps reduce eyestrain in long duration events.