Pinty Red Green Dot Sight Reflex Holographic Tactical Riflescope 4 Reticle Patterns with 20mm Free Mount Rails Black Red and green illuminated reticle with four patterns offer unlimited eye-relief and corrected parallax, built-in picatinny mount base for easy sight remounting. 33 mm reflex lens, tubeless design with wide field of view, great for rapid-firing and moving targets; water, fog and shock proof for uncompromised performance in all weather conditions. Windage and elevation adjustable (tools included in the package) for easy zeroing. Equips you with various shooting capabilities at an affordable price, a perfect sight for novice shooters. Solid aluminum alloy construction, will last for years to come.