Athlon Heras SPR 4-20x 50mm Rifle Scope - AAGR2 SFP MOA - Athlon's modern update to the classic 3-9x40 hunting scope. Incorporating an adjustable elevation turret, locking windage turret, and MOA and MIL second focal plane reticle options provide modern hunters with a new approach for shots on long-range game. Featuring a parallax adjustment from infinity to a minimum distance of 10 yards, suitable for use on long-range magnum rifles and close-range airguns alike! Advanced Fully Multi-Coated: Athlon advanced fully multicoated glass gives you better light transmission with optimum brightness and true color across the entire light spectrum. Precision Zero Stop: Athlon's precision zero stop system allows you to return to your initial zero position with a sharp and precise stop, right on your initial zero. Locking Turrets: Athlon Optic's locking turrets allow you to pull up on your turret to dial and push down on the turret to lock it in place to avoid inadvertent adjustments. Argon Purged High Precision Erector System Aircraft Grade Aluminum Tube Etched Glass Reticle Waterproof Fog Proof Shockproof One Piece Tube Construction