For those looking for an extra-duty aluminum housing, this is it. With 50,000 hours of battery life the TSR series is always ready.
Key Features:

• Fully multi-coated lenses
• Extended battery life
• Motion sensor
• Nitrogen purged
• Aircraft aluminum
• Waterproof
• Fog proof
• Shockproof
• Adjustable illumination

Athlon Optics MIDAS EDC 3 MOA Red Dot Specifications:

• Magnification: 1X
• Obj. Lens: 20x16 mm
• Parallax: 0 MOA
• Dot Color: Red
• IR Setting: 1-10
• Center Height: 0.59"
• Click Value: Linear
• Battery: CR2032
• Weight: 0.65 oz
• Length: 1.61"