SIG SAUER TANGO-MSR COMPACT 1-6X24MM SFP ILLUMINATED RIFLE SCOPE FEATURES High Performance 6x optical system with low dispersion glass Integrated thread-in throw leaver for quick magnification changes Illuminated BDC-6 reticle Lay flat flip-back lens covers included Dependable waterproof, shockproof, and fog-proof performance Includes one-piece aluminum cantilever mount SPECIFICATIONS Magnification: 1-6x Objective Lens Diameter: 24 mm Maintube Diameter: 30mm Objective Outer Diameter: 30 MM Mount Included: Yes Mount Type: Integral Mount Battery: (1) CR2032 Focal Plane: Second Mfg: Sig Sauer, Inc.