The Lightest Full Metal Pistol Red Dot Sight in the World Only 18.4g 0.65oz

3MOA Dot Size, Slim & Low Profile, Snag-Free Design, w/ Rear Sight Structure

Automatic Light Sensor, MAG Footprint Compatible for RMSc Footprint

Standard Window Size 17x24mm 0.7x0.9", 1" 25.4mm Width, 24mm / 0.9" Height

50,000 Hours Battery Runtime for the Weakest Visible Dot, IPX6 Water Proof