SMK1056 Features: * Tactical red dot sight * Material: Aluminum * Unlimited field of view * Unlimited eye relief * No hazardous materials used * No radioactive components * No laser emission that could be harmful to the eyes * Mechanical switch for speed and reliability * Compact * Lightweight * Shockproof * Magnification: 1x * Eye relief: Unlimited * Reticle: Illuminated red dot * Reticle size (Diameter, MOA): 8 * Battery life: 50 hours * Switch (# of positions): 8 * Mount: Standard weaver * Optics coating: Multicoated Includes: * Includes accessories flip-up lens covers, standard weaver mount and adjustment tool Construction: * Rugged, durable construction Color/Finish: * Finish: Black * Surface finish: Hard anodized Specifications: * Power supply, battery type voltage: (1) 2032; 3V Dimensions: * Tube length: 5.3" * Weight: 0.73 lb * Dimensions: 2.5" H x 2" W x 5.25" D Warranty: * Limited lifetime warranty