Sig Sauer TANGO SPR Rifle Scope 1-4X Magnification Second Focal Plane Hellfire Quadplex Illuminated FL-4 Reticle 24mm Objective 30mm Main Tube Black. Clear rugged and bright the TANGO-SPR series is packed with premium features that keep you on-target near or far. Each configuration comes with a factory-installed SPR Scope Mount for seamless integration with your favorite rifle while the included flip-back caps keep your low dispersion lenses protected. Specifications for Sig Sauer 1-4x TANGO SPR Rifle Scope 30mm Tube Second Focal Plane: Manufacturer: SIG SAUER Objective Lens Diameter: 24 mm Magnification: 1 - 4 x Reticle: HELLFIRE FL-4 Tube Diameter: 30 mm Reticle Focal Plane: Second Focal Plane (SFP) Illumination Color: Red Finish: Black Field of View Linear: 26.2 - 104.8 ft at 100 yds Eye Relief: 3.7 in Color: Black Weight: 25.9 oz Adjustment Type: MOA Illumination Type: LED Battery Type: CR2032 Water Resistance Level: Waterproof Shockproof: Yes Fogproof: Yes Battery Quantity: 1 Condition: New Features of Sig Sauer 1-4x TANGO SPR Rifle Scope 30mm Tube Second Focal Plane: High performance 4x optical system with low dispersion glass 30MM Maintube HELLFIRE Illuminated FL-4 Reticle Factory-Installed SPR Scope Mount Removeable Throw Lever for Quick Magnification Changes Exposed Zero-Stop Elevation and Low Profile Capped Windage Dials Lay-Flat Flip-Back Lens Covers Dependable Waterproof Shockproof and Fog Proof Performance Package Contents: Sig Sauer 1-4x TANGO SPR Rifle Scope 30mm Tube Second Focal Plane SIG SAUER Infinite Guarantee