Designed from the ground up to ensure clarity solid function and rapid target acquisition. Fits most compact and full-size optics-ready pistols that use the Docter mounting footprint. With 2 night vision brightness settings the RFX25 is the perfect optic for your pistol in any light condition. Tested in the harshest conditions to ensure your optic will be ready whenever you need it. Features Auto-Off after 2 minutes.