Product DescriptionOriginally engineered for the Israel Defense Force, the Mepro M21 is a rugged, battery-free reflex red dot sight designed for day and night readiness. Using fiber?'optic illumination in daylight and Meprolight tritium in low light, it delivers a crisp aiming point without switches or batteries to manage. The M21 features a true 1x view through a large 30 mm objective for fast, both?'eyes?'open target acquisition, and it meets demanding MIL?'STD?'810 environmental standards. Compatible with night vision devices, including Generation III tubes, and with magnifiers such as the Mepro MX3F/T, the M21 mounts quickly on Picatinny rails with its quick?'release base.Product HighlightsBattery?'free dual illumination: fiber?'optic by day, tritium by night for continuous readinessLarge 30 mm lens and true 1x magnification for rapid, both?'eyes?'open shooting4.3 MOA illuminated dot reticle for precise, fast aimingNight?'vision compatible and optimized for use with Mepro MX3F/T magnifiersRugged MIL?'STD?'810 construction with quick?'release Picatinny mountSpecsProduct Type: Battery?'free reflex red dot sightMagnification: 1xObjective Lens Diameter: 30 mmReticle: 4.3 MOA dot, illuminatedIllumination: Fiber?'optic (day) / Tritium (night)Eye Relief: UnlimitedMount Type: Picatinny, quick?'releaseColor/Finish: BlackNight Vision Compatibility: Yes, including GEN IIIOverall Length: 4.48 inDurability Standard: MIL?'STD?'810UPC: 879015004347Manufacturer Part Number: 626210Brand: MEPRO USA LLCDisclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.