When situations demand split-second target acquisition and maximum field of view, mount up the Strikefire II and get shooting. Compared to its smaller red dot cousins like the SPARC or Crossfire, the Strikefire II’s larger objective and 30mm tube design provide a larger field of view, and allow it to be mounted at just about any height using most common 30mm rings. The Strikefire II offers big time versatility at a price that won’t break the bank.
Key Features:

• Fully Multi-Coated
• Brightness Settings
• Unlimited Eye Relief
• Parallax Free
• Single-Piece Chassis
• Hard Anodized Finish
• Waterproof
• Shockproof
• Fogproof

Vortex Optics Strikefire II 4 MOA Red Dot Sight Specifications

• Magnification 1x
• Objective Lens Diameter 30 mm
• Dot Size 4 MOA
• Eye Relief Unlimited
• Adjustment Graduation 1/2 MOA
• Travel Per Rotation 25 MOA
• Max Elevation Adjustment 100 MOA
• Parallax Setting Parallax Free
• Length 5.6 inches
• Weight 7.2 oz
• Mount Type Lower 1/3 Co-Witness Cantilever
• Max Windage Adjustment 100 MOA

Fully Multi-Coated
Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Brightness Settings
10 levels
Unlimited Eye Relief
Non-critical eye relief for rapid target acquisition
Parallax Free
All red dot and holographic sights will exhibit some small amount of parallax. Matching current industry practice, this small amount would be considered "parallax free" and will make a negligible difference in performance.
Waterproof
O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments.
Shockproof
Rugged construction withstands recoil and impact.
Single-Piece Chassis
Compact and lightweight.
Hard Anodized Finish
Highly durable hard-coat anodization provides a low-glare matte surface.

In The Box Vortex Optics Strikefire II 4 MOA Red Dot Sight with Wearable4U Bundle (May Vary)