The Firefield 3x Combat Sight is a versatile optical gun sight, designed like a universal scope for accurate short and medium range shooting. Featuring an illuminated red or green reticle, the Firefield 3x Combat Sight has up to five brightness settings that can adapt to any terrain. The brightness settings allow for optimal shooting in low light scenarios without the inherent problems of fiber optics or auto-adjusting systems. The ¼ MOA adjustment provides precision accuracy, perfect for short and medium range combat situations. Compatible with AR15s and picatinny mounts, the Firefield 3x Combat Sight handles recoil well and is waterproof and fog proof, for maximum durability. The Firefield 3x Combat Sight features a durable, aluminum die-cast construction and multi-coated lenses for a crisp, clear image. The Firefield 3x Combat Sight is a must have for any tactical shooter.