Crimson Trace Brushline Scope Black Anodized 3-9x40mm 1" Tube Bdc Rimfire Reticle The Crimson Brushline Optics Are Designed With The 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. Magnification: 3-9X Objective: 40mm Eye Relief: 4" Tube Diameter: 1" Length: 12.30" Weight: 14.10 Oz Reticle: BDC Rimfire Proofs: Fog/Shock/Waterproof Optic Coating: Green Mult-Coated Manufacturer: Crimson Trace Mfg Number: 0101580 Model: Brushline