Eyes See Green Better. The RFX 15 is designed from the ground up to ensure clarity, solid function, and rapid target acquisition. With 2 night vision brightness settings, the RFX15 is the perfect optic for your pistol in any light condition and is tested in the harshest conditions to ensure your optic will be ready whenever you need it Features : 3 MOA Micro Green Dot 17x24 mm Viewing Window Shield Footprint & Picatinny Mount Included Auto Shut Off and INSTANT-ON Technology 8 Visible & 2 Night Vision Brightness Settings