Mount the Vortex Strikefire II Red Dot Sight 4 MOA w/ LED Upgrade to quickly acquire targets in the field with advanced precision. These Red Dot Sights developed by Vortex Optics feature fully multi-coated lenses for crisp, bright views throughout. This Vortex Strikefire II Parallax-Free Red Dot Sight offers unlimited eye relief for comfortable viewing sessions, and there are 10 brightness levels so that you can best match the reticle to your current environment and situation. Each of these sights is built in a single-piece chassis for enhanced ruggedness, and the waterproof, fogproof and shockproof design is as tough as it gets. Plus, there's a hard anodized finish for superior corrosion resistance. Equip this Vortex Strikefire II 30mm Red Dot to improve your aim in close- to mid-range scenarios.