Product Description The Primary Arms Classic Series 24mm Mini Reflex Sight Gen 2 delivers fast, intuitive target acquisition in a compact, lightweight package weighing under an ounce. Designed for full-size carry pistols and competition firearms, this mini reflex sight features the innovative AutoLive technology, which automatically powers the unit down when stationary and instantly reactivates at the slightest movement - dramatically extending battery life. The large 24x17mm fully multicoated lens provides a clear, wide sight picture resistant to scratches and fogging, while a vibrant 3 MOA green dot ensures a daylight-bright aiming point across all conditions. Housed in rugged 6061-T6 aluminum with a hardcoat anodized finish, this sight is built to withstand the demands of daily carry and competition use. It features the popular RMR footprint for broad compatibility with milled slides and adapter plates, and a convenient bottom-mounted CR2032 battery tray offering up to 40,000 hours of runtime on the medium setting. With 10 total illumination settings, this optic is a superior value in the Classic Series lineup, backed by Primary Arms&'; lifetime warranty. Product Highlights AutoLive Motion Activation: Automatically shuts off when still and powers on instantly with movement, preserving battery life without sacrificing readiness. 3 MOA Green Dot Reticle: LED-illuminated green dot with 10 brightness settings including daylight-bright levels for fast and precise target acquisition in any light condition. Large 24x17mm Fully Multicoated Lens: Wide field of view with anti-scratch and fog-resistant coatings for a clear, reliable sight picture. RMR Footprint Compatibility: Universal mounting footprint supports a wide range of milled pistol slides and aftermarket adapter plates for versatile firearm compatibility. Lightweight Aluminum Construction: Built from 6061-T6 aluminum with a hardcoat anodized finish, weighing under one ounce for minimal impact on firearm handling and balance. Specs Brand: Primary Arms Optics Series: Classic Series Generation: Gen 2 Magnification: 1x Objective Lens Diameter: 24mm Lens Size: 24x17mm Reticle: 3 MOA Green Dot Illumination Type: LED Illumination Color: Green Brightness Settings: 10 Emitter Type: Open AutoLive Feature: Yes Mounting Footprint: RMR Body Material: 6061-T6 Aluminum Finish: Hardcoat Anodized Color: Black Battery Type: CR2032 Lithium Metal (Bottom-mounted tray) Battery Life: Up to 40,000 hours (medium setting) Weight: 0.98 oz Lens Coating: Fully Multicoated (scratch and fog resistant) Warranty: Lifetime UPC: 818500019930 MPN: 810048 Disclaimer: 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. ]]>