Primary Arms SLx Series Rifle Scope 1-6x24mm Second Focal Plane ACSS 5.56/5.45/.308 Illuminated Reticle Black. The system of these AR15 Rifle Scopes by Primary Arms is easy to use and instinctive accurate from 300-800 yards and incredibly fast from 0-300 yards. The Primary Arms 1-6x24 Gen 3 SFP Rifle Scope features a second focal plane design that keeps the reticle on your target for quick acquisition at low power and high functionality at maximum power. Tough and waterproof yet lightweight this Primary Arms 1-6x BDC Rifle Scope is a must-have for any shooter. Specifications for Primary Arms SLx 1-6x24mm Gen III Rifle Scope 30mm Tube Second Focal Plane: Manufacturer: Primary Arms Objective Lens Diameter: 24 mm Magnification: 1 - 6 x Reticle: ACSS 5.56/5.45/.308 Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Exit Pupil: 4 - 9 mm Illumination Color: Red Finish: Matte Field of View Linear: 110 - 19.3 ft at 100 yds Eye Relief: 3.3 - 3.5 in Color: Black Weight: 16.9 oz Adjustment Click Value: 0.5 MOA Length: 10 in Adjustment Type: MOA Illumination Type: LED Battery Type: CR2032 Fabric/Material: 6063 Aluminum Weather Resistance: Fog Resistant Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Package Type: Box Included Accessories: Standard Magnification Type: Variable Condition: New Features of Primary Arms SLx 1-6x24mm Gen III Rifle Scope 30mm Tube Second Focal Plane: Second focal plane ACSS reticle designed for .22LR Red illumination with 11 brightness settings BDC accurate at highest magnification setting 1-6x total magnification Includes CR2032 battery Single piece 6063 aluminum construction Hardcoat anodized matte finish Fully multicoated lenses Lifetime warranty Package Contents: Primary Arms SLx 1-6x24mm Gen III Rifle Scope 30mm Tube Second Focal Plane Primary Arms 610017: SLx Series Rifle Scope 1-6x24mm Second Focal Plane ACSS 5.56/5.45/.308 Illuminated Reticle Black