The SIG SAUER Tango-SPR Rifle Scope represents the next generation of affordable all-purpose scopes. The Tango-SPR (Special Purpose Rifle) features a high-performance 4x optical system that utilizes low-dispersion glass to provide a clear, bright image. Dedicated side focus, windage, and elevation dials ensure dependable precision with every round. MOA-based BDC1 second focal plane reticle has indicator markings for ranging and holdovers. Main tube is 100% waterproof, fogproof, and shockproof. Removable throw lever for fast magnification changes. Includes factory-installed SPR scope mount for seamless integration with your favorite rifle. 4x optical system with low-dispersion glass Main tube is 100% waterproof, fogproof, and shockproof Low-profile capped windage turret and exposed elevation turret BDC1 second focal plane reticle Removable throw lever for fast magnification changes Includes SPR mount