These models meet our strictest quality standards, are constructed with premium components and have proved reliable in virtually every hunting situation imaginable. They deliver crisp, clear images from edge to edge and outstanding light transmission, so you can see your target clearly at dawn and dusk. Their one-piece tubes in conjunction with extremely tight manufacturing tolerances guarantee strength and 100% waterproof integrity. All Alaskan Guide Riflescopes have precise 1/4-MOA adjustments and durable matte finishes. Both models in our 30mm line have huge 52mm objectives for enhanced field of view.