The Sightmark SM26017 Core Shot A-Spec FMS Reflex Sight in Matte Black delivers rapid targeting and dependable performance on Picatinny rails with a compact 28 mm by 18 mm objective and a 5 MOA red dot that provides clear aiming points for quick, instinctive shots. This 1x magnification sight features unlimited eye relief and adjustable windage and elevation, allowing precise zeroing across a range of applications, while its AR Red coating enhances light transmission for bright, crisp reticles even in variable lighting. Weighing approximately 4.40 oz and measuring 2.30 inches in length, the unit is designed for durable field use, with water resistance and shockproof construction to withstand demanding environments. Powered by a CR2032 battery, its easy-to-read 5 MOA dot offers fast target acquisition and reliable reticle visibility, making it ideal for fast-moving targets, home defense options, and recreational shooting where quick, accurate lead times are essential. Built to endure rugged conditions, the Core Shot A-Spec FMS reflex sight pairs a robust matte finish with precise 1 MOA adjustment steps for fine-tuning zero, ensuring consistent performance from the moment you mount it.