Ncstar tactical series scopes are compact with a blue lens to maximize the performance of your firearm to its full potential.The compact and lightweight design provides for easy carry and use on mater what situations may arise.The tactical series is always ready for the action featuring classic design in small package airgun compatible multi-coated lenses that includes lens covers.Adj Size: .25 MOA @ 100 ydsMagnification: 4xObjective: 30mmField Of View: 26.20 ft @ 100 ydsEye Relief: 3"Tube Diameter: 1"Length: 8.70"Weight: 9.20 ozReticle: BlackParallax Adjustment: P4 SniperProofs: 7.5mmCoating Type: Waterproof ShockproofOptic Coating: BlueOptic Coating: Multi-Coated