Designed for modern semi-automatic pistols, MSR platforms and shotguns. Short and medium range engagements and recreational shooting across a wide range of calibers and light conditions. Fully ruggedized and impact resistant for the toughest environments. Ultra durable and lightweight 7075 aluminum main housing and components, 1.41” riser mount with additional lower 1/3 co-witness spacer. Comes standard with see-through lens covers and hex bolt mount. Bolt mount included. Strong, lightweight 7075 Aluminum housing. Waterproof, IPX-8 rated, and fog-proof.