The Holosun 407 Gold 2MOA Dot Open Lens Solar Shake Awake 7075 Aluminum Miniature Pistol Reflex Sight is a rugged, performance-oriented reflex optic designed for pistols that combines simplicity with modern power management. It features a high-contrast gold 2 MOA dot reticle for quick, precise aiming and an open-lens design that provides a wide field of view with unlimited eye relief and parallax-free performance at typical handgun distances. Built on a reinforced 7075-T6 aluminum housing with a hard-anodized finish, the sight uses a side-loading CR1632 battery with up to 100,000 hours of runtime and incorporates Solar Failsafe to help maintain reticle brightness in bright conditions, plus Shake Awake technology to conserve battery life when not in motion. The optic also offers 1 MOA windage and elevation adjustments, an IP67 waterproof rating, and 5000 G vibration resistance, making it a durable, reliable choice for everyday carry, duty use, and range applications.