High performance meets affordability in the new TANGO-SPR (Special Purpose Rifle) lineup. 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. Product Features 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 Product Specifications 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