The Crimson Trace Brushline 3-9x40mm scope with Crimson Trace's custom BDC Reticle is the classic hunting scope but with a modernized BDC reticle. The diamond shapes in the reticle allow for three distinct aiming points per diamond. This scope boasts a 1" tube made of aerospace-grade aluminum, making it lightweight yet durable. It has passed extensive environmental testing and is nitrogen-purged, waterproof, shockproof. It boasts MOC-coated ELD glass, and the aggressive knurling on the magnification ring and turret ensures effortless adjustments. All Crimson Trace® scopes are covered under a Lifetime Warranty and is backed by our award-winning customer service team.