The Crimson Brushline Pro optics are designed with experienced hunter in mind and have been built from the ground up. The line features lightweight aluminum grade 1" tubes. They are green multi-coated, capped turrets, corrosion resistant, nitrogen purged, waterproof and ready for whatever elements they encounter. Brand Crimson Trace Category Rifle Scopes Focal Plane Second Model Brushline Series Pro Finish Black Anodized Magnification 2.5-10x Material Aluminum Firearm Type Rifle / Shotgun Reticle Plex Objective 42mm Tube Diameter 1" Length 12.60" Adjustment Size .25 MOA Eye Relief 4" - 3.80" Optic Coating Multi-Coated Weight 16.60 oz