The firefield tactical riflescope with adjustable objective gives any shooter the desired ability to shoot at close, medium to long range with precision accuracy.The adjustable objective lens allows you to sight targets from almost any distance.The waterproof and fog proof, the nitrogen filled frame is made to be lightweight and shockproof, making it perfect to transport.The mil-dot reticle on the firefield adjustable objective tactical riflescope, provides precision results, making every shot count.This model has a 4-16 magnification and a 42mm objective.Adj Size: .25 MOAMagnification: 4-16xObjective: 42mm AOField Of View: 26.20-6.90 ft @ 100 ydsEye Relief: 4.30"-3.30"Tube Diameter: 1"Length: 13.30"Weight: 26 ozReticle: Black MatteParallax Adjustment: Illuminated Red/Green Mil-Dot (SFP)Parallax Adjustment: 15 yds-InfinityProofs: 10.5-2.6mmCoating Type: Waterproof, Fogproof, ShockproofOptic Coating: BlueOptic Coating: Multi-Coated