Athlon Helos BTR GEN2 4-20x 50mm Rifle Scope - APRS6 FFP IR MIL - Affordable, solid, and reliable are seldom associated with long range shooting and hunting. The Helos BTR GEN2 is the exception. Advanced Fully Multi-Coated lenses and XPL coatings balance out this optic for a wide variety of conditions. Cross-over features such as Locking turrets are not just for hunting, they instill confidence in mid to long range shooters as well. FFP, Fully Multi-coated Lenses, Direct Dial and Locking Elevation & Windage Turrets, Illuminated Reticle, 30mm Tube, Zero Stop. 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 System: 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.; XPL Protective Coating; Argon Purged; High Precision Erector System; Aircraft Grade Aluminum Tube; Illuminated Reticle; Etched Glass Reticle; Waterproof; Fog Proof; Shockproof; One Piece Tube Construction;