Vortex Viper PST 1-4x24 Riflescope has been developed to be an amazing 3 gun competition riflescope that can be obtained for an equally amazing value. The Viper PST 1-4x24 by Vortex is a Precision Shooting Tactical riflescope with an O-ring to seal and prevent moisture, dust, and debris from getting inside the tube, making it waterproof and filled with argon gas to prevent fogging over a wide range of temperatures. Vortex Viper PST 1-4x24 can be classified with top-tier Riflescopes but with a reasonable price. Get the same performance and features tactical shooters demand at a reasonable price. Gain ample windage and elevation adjustment with this Vortex Riflescope. The Viper PST 1-4x24 allows accurate, fast dialing of shots with its matching reticle and turret measurements. The Vortex Viper 1-4x24mm riflescope is a one-piece 30mm tube was manufactured from a single solid block of aircraft grade aluminum.