Steiner brings their outstanding, military proven optics to the front line with some of the most feature rich scopes on the market. The rugged one piece 6061 T-6 tube has NANO protection hydrophobic coating making it impervious to the elements. Tactical turrets make it simple to dial in, and feature solid windage and elevation adjustments that are 100% repeatable. Shooting in low light is no problem with the HD XP, Fully multi-coated optics. The red illuminated Special Competition Reticle (SCR), with 11 brightness settings is powered by a single CR2450 lithium battery and features auto-off to conserve battery life. The objective bell of the Military Tactical series is threaded for use with anti-reflection and laser filtration devices (not included). Returning to zero is fast and precise with Steiner's, true zero stop turrets. These scopes come with Butler Creek flip-up lens covers, a cleaning cloth, CR2450 lithium battery and is covered by Steiner's Heritage limited lifetime warranty.