Pinty Tactical Holographic Reflex Red Green Adjustable Dot Sight with Rail Mount The tubeless design of this 33mm, reflex lens provides a wide field of view, suitable for normal and rapid-fire shooting of moving targets. A durable all metal construction allows the sight to be weatherproof and shockproof yet lightweight enough not to compromise the feel of the weapon. Customize your shot with red and green reticles with four patterns and adjustable brightness. Elevation and windage can also be adjusted for perfect trajectory. The sight also includes an integrated mount for all standard 20mm rails.