If you want a high-quality red dot sight, the StrikeFire II is a great choice. The sleek, rear-facing controls allow for easy adjustment of its ten dot intensity levels; the lowest two settings are night-vision compatible. It features a 30mm aluminum alloy chassis, extra-high recoil rating, and is waterproof and fogproof for ultimate reliability.With aesthetics and functionality in mind, the power controls are at the rear of the Strikefire for easy access. The Strikefire II runs off a CR2 battery. Vortex Optics hat included, hat color may vary. An offset cantilever mount is provided; allowing you to move the sight forward to be used in conjunction with a magnifier and backup iron sights all on the same rail. The single-piece chasis is compact and lightweight but still delivers shockproof performance withstanding both recoil and impact. Nitrogen purging and o-ring seals ensure fogproof and waterproof performance. Fully multi-coated lenses provide a clean and bright, unobscured point of view. Unlimited eye relief allows for rapid target acquisition. The Strikefire II Red/Green Dot is a rugged, reliable red dot sight that is at home in a variety of shooting applications. It allows the shooter to operate between two dot colors and ten brightness settings to easily adjust for changing conditions.Mounting Type: Cantilever Mount. Compatible Devices: Shotgun. Magnification Minimum: 1 x. Objective Lens Diameter: 30 Millimeters. Material: Aluminum. Item Weight: 0.01 Ounces. Sport Type: Shooting. Style: Compact. Color: black. Brand: Vortex. Date First Available: July 31, 2014. Best Sellers Rank: #22,391 in Sports & Outdoors. Customer Reviews: 4.8 out of 5 stars 2,001 ratings 4.8 out of 5 stars. : B00MAJKX9M. Size: ?Cantilever & Low Ring Mounts. Included Components: ?red dot sight. Part Number: ?SF-RG-501 & Hat. Manufacturer: ?Vortex Optics. Suggested Users: ?unisex-adult. Model Name: ?Strikefire II Red Dot Sight. Warranty Description: ?Unlimited, unconditional lifetime warranty. Country of Origin: ?United States. Brand Name: ?Vortex. Package Weight: ?0.62 Kilograms. Item Package Dimensions L x W x H: ?9.61 x 7.32 x 4.65 inches. Night vision: ?Yes. Mounting Type: ?Cantilever Mount. Compatible Devices: ?Shotgun. Magnification Minimum: ?1 x. Objective Lens Diameter: ?30 Millimeters. Material: ?Aluminum. Item Weight: ?0.01 Ounces. Sport Type: ?Shooting. Style: ?Compact. Color: ?black. Brand: ?Vortex.