The Primary Arms Classic Gen II Removable Microdot Red Dot Sight is a second generation model with a removable 1913 Picatinny base. These Red Dot Sights built by the experts at Primary Arms are compatible with any standard micro mount system. The Primary Arms CLxZ Gen II Micro Dot Sight has a high visibility 2 MOA red dot with 12 brightness settings from night vision to bright daylight. Waterproof, shockproof, and with a compact aluminum body, the Primary Arms CLxZ Gen II Micro Dot Sight w/Removable Base is a perfect addition to any firearm. Specifications for Primary Arms Classic Gen II Removable Microdot Red Dot Sight: Manufacturer: Primary Arms Color: Black Finish: Hardcoat Anodized Fabric/Material: Aluminum Magnification: 1 x Reticle: 2 MOA Dot Illumination Type: LED Illumination Color: Red Brightness Settings: 12 Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 0.5 MOA Emitter Type: Open Parallax: 50 yds to infinity Battery Type: CR2032 Battery Quantity: 1 Battery Life: 1000 hours Weather Resistance: Yes Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Gun Make: AR Platform Gun Model: AR-15 Weight: 4.1 oz Condition: New Package Type: Box Magnification Type: Fixed Quantity: 1 Red Dot Sights-Footprint: Not Applicable Mount Type: Picatinny Attachment Type: Picatinny Features of Primary Arms Classic Gen II Removable Microdot Red Dot Sight: Approx. 1,000 hour battery life at medium setting, Uses one CR2032 battery (included), Includes removeable picatinny rail mount., Compatible with standard micro mounts and gives stated co-witness, Crisp 2 MOA red dot, Fully multi-coated anti-reflective lenses, 11 Illumination settings for bright days and night vision compatible, Absence of parallax shift past 33 yards, Waterproof to 6ft. with turret caps on, Water resistant with turret caps off, Fog resistant, Bikini lens cover included, Package Contents: Primary Arms Classic Gen II Removable Microdot Red Dot Sight