The Trijicon RedDot™ is a red-dot reflex sight that easily mounts in tandem with the Trijicon ACOG Scopes. This sight houses a hard coated acrylic lens that can withstand a shock impact up to 5,000G’s (ten times greater than products manufactured with glass optics). This clear polymer optic is parallax-free, has a 98% light transmission, and is built to a one micron tolerance (allowing for greater accuracy). The body is composed of a glass re-enforced nylon polymer (which is stronger than aluminum) giving this optic superior performance and strength. CLICK HERE to view the cleaning instructions for the Trijicon RedDot.