Just when you thought Athlon couldn't improve the Ares BTR, they did! The Ares ETR First Focal Plane Scope is loaded with features that will allow you to take your long range shooting to another level. Featuring a completely revamped turret system, the Ares ETR has a locking windage turret along with a true zero stop on the elevation turret to make sure your turrets and shots are right on every time. Extra dispersion ED lenses allow for the sharpest and best color image possible. Constructed with an 34mm tube, this riflescope can withstand even the harshest of elements. FeaturesExtra Low Dispersion (ED) glassIlluminated, glass etched, first focal plane reticleAdvanced fully multi-coated opticsXPL coatingPrecision zero stop systemLocking windage turretHigh precision erector systemOne piece, aircraft grade aluminum tube constructionArgon purged for waterproof, fogproof and shockproof performance