Black Diamond Optics 5-30x56mm 30mm Tube Rifle Scope Second Focal Plane Etched Glass Reticle Black. Weighing in at 34oz and 100percent waterproof the ZS-20 offers both Hunters and competitive shooters the edge needed for todays long range shooting. Specifications for Black Diamond Optics ZS-20 5-30x56mm 30mm Tube Rifle Scope Second Focal Plane: Manufacturer: Black Diamond Optics Objective Lens Diameter: 56 mm Magnification: 5 - 30 x Reticle: Etched Glass Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Color: Black Package Contents: Black Diamond Optics ZS-20 5-30x56mm 30mm Tube Rifle Scope Second Focal Plane ZS-20 Zero Stop Rifle Scope Red Eletation Turret Cap Lens covers Turret Cap Wrench Allen Wrench 3" Sunshade and Cleaning cloth. Black Diamond Optics ZS-20: ZS-20 5-30x56mm 30mm Tube Rifle Scope Second Focal Plane Etched Glass Reticle Black