The Sightron S3 Long Range Rifle Scope features a 30mm tube for added strength and better light transmission. Each Sightron S3 is nitrogen filled to prevent fogging and is also water, fog and shockproof. Other features include easy to adjust target style turrets. Features: - Magnification: 6-24 - Eye Relief: 3.6-3.8 - Fov: 16.1-3.9 - Windage Elevation: 100 Specifications: - Length: 14.96 - Weight: 21.9 - Reticle: Dot Reticle - Finish: Satin Black