Vortex Defender ST - 3 MOA Micro Red Dot3 MOA DOT The Defender ST features a total of 10 brightness settings (eight for daylight use and two for night vision). Offered with either a 3 or 6 MOA daylight bright red dot, it is easy to see and acquire targets regardless of lighting conditions or background. Included In the Box Glock MOS Adapter Plate Picatinny Mount Rubber Cover Lens Cloth CR2032 Battery Custom Tool Most Common Mounting Screw Sets Mounting Footprint DeltaPoint Pro Dot Size 3