Fit for GLOCK MOS OR Platform, Requires No Adapter Plate for a Secure Installation 3MOA Dot, 16x21mm Window Size, Weighs Only 33g / 1.16oz, Optimized for Pistol 1500G Shockproof, IPX7 Waterproof, 7075-T6 Aluminum Alloy Ensure Exceptional Durability 9 Brightness Levels with 2 Night Vision Settings Provide Versatility across Lighting Conditions