The Duty-XL is a rugged, sealed pistol optic with a Closed Emitter design, ready for duty. Never worry about dirt, dust, or water clouding or disrupting your dot. This double bar side-clamping optic is sure to be the best companion for your duty, carry, or competition gun. The new double-bar feature ensures a rock-solid mount to prevent any movement.Features : 3 MOA Dot and 30 MOA Circle Battery Type: CR2032 Shake Awake 10 Brightness Settings 2 Night Vision Settings Auto Shut Off ACRO Footprint Reticle Color: Red Requires Adapter (Not Included)