The Duty is a rugged, closed emitter pistol optic that is sealed and ready for duty. Never worry about dirt, dust, or water clouding or disrupting your dot. This side-clamping optic is sure to be the best companion to your duty, carry, or competition gun. It utilizes the same footprint as the ACRO to ensure widespread compatibility. Available in red, green, and multi-reticle versions. Featuring 10 levels of brightness (levels 1 and 2 are night vision compatible), motion control (shake to wake up), smart power management (auto-off after 5 minutes of inactivity), 50,000 hour battery life, and a CNC machined, one-piece body (aircraft aluminum). Specifications for C&H Precision Weapons Duty Optic Sights: Manufacturer: C&H Precision Weapons Color: Black Fabric/Material: Aircraft Aluminum Magnification: 1 x Objective Lens Diameter: 16 mm Adjustment Type: MOA Adjustment Click Value: 1 MOA Parallax: 33 yds Battery Type: Lithium Metal Battery Life: 50000 hours Water Resistance Level: Waterproof Length: 47 mm Width: 35 mm Height: 32 mm Weight: 70.8 g Magnification Type: Fixed Brightness Index: 10 Features of C&H Precision Weapons Duty Optic Sights 10 Levels of brightness (levels 1 and 2 are night vision compatible) Motion control (Shake to wake up) Smart Power Management (auto-Off after 5 mins of inactivity) 50,000 hours of battery life CNC machine one-piece body (aircraft aluminum) 100% Shockproof (1500 G for 1000 times) Package Contents: C&H Precision Weapons Duty Optic Sights