Athlon Optics 10x42 Talos BTR Gen2, SFP AAGR1, 1/4 MOA, 30mm Tube Fixed 10x magnification 42mm objective lens 30mm aircraft-grade aluminum tube Exposed turrets Precision zero stop 3.6" eye relief 10 yds to infinity side parallax adjustment 11.5 feet field of view at 100 yards 1/4 MOA Click Value 15 MOA adjustment per rotation 120 MOA total elevation adjustment 120 MOA total windage adjustment Length: 13.3" Weight: 24.6 oz AAGR1 SFP (Second Focal Plane) MOA Etched Glass Reticle Fully-multicoated lenses One-piece tube Waterproof Fog proof Shockproof Nitrogen purged Lifetime warranty