Barska AO Varmint Trace MOA V2 Rifle Scope 10-40x Magnification 60mm Lens 30mm Tube Second Focal Plane Trace MOA Reticle Matte Black. These Rifle Scopes by Barska improve on the AO system of Rifle Scopes with an Adjustable Objective (AO) lens that allows you to adjust for parallax and get great long-range targeting. If you're a beginner or an expert you can take advantage of fully multi-coated optics for a clear view of your surroundings which will increase your visibility in the field so that you can take down varmints that are behaving erratically. For fogproof and shockproof performance the Barska 10-40x60mm AO Varmint Trace MOA Rifle Scope is housed in a water fogproof and shockproof 30mm tube that can handle all the ups and downs of your outdoor adventures. Specifications for Barska AO Varmint Trace MOA V2 10-40x60mm Rifle Scope: Manufacturer: Barska Objective Lens Diameter: 60 mm Magnification: 10 - 40 x Reticle: Trace MOA Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Exit Pupil: 6.3 - 1.5 mm Illumination Color: None Finish: Matte Field of View Linear: 2.35 - 9.42 ft at 100 yds Eye Relief: 3.35 - 3.6 in Color: Black Weight: 1.9 lb Adjustment Click Value: 1/8 MOA Length: 17 in Adjustment Type: MOA Parallax: Adjustable Illumination Type: Non-Illuminated Fabric/Material: Aluminum Adjustment Range: 40 MOA Lens Material: Glass Optical Coating: Fully Multi-Coated Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Package Type: Box Magnification Type: Variable Gun Type: Rifle Features of Barska AO Varmint Trace MOA V2 10-40x60mm Rifle Scope Fully Multi-Coated Optics Waterproof Fogproof and Shockproof Package Contents: Barska AO Varmint Trace MOA V2 10-40x60mm Rifle Scope Scope Caps 3" Sunshade Barska AC13524: AO Varmint Trace MOA V2 Rifle Scope 10-40x Magnification 60mm Lens 30mm Tube Second Focal Plane Trace MOA Reticle Matte Black