Sightron S1 4-12x40 AO G2 Duplex 1in Tube Matte Riflescope

The Sightron S1 4-12x40 AO G2 is a versatile variable-power riflescope built around a compact, lightweight 1-inch aircraft aluminum tube with a classic matte black finish. Part of Sightron's modernized hunting lineup, this scope pairs a 4-12x magnification range with a 40mm objective lens and the company's proprietary MC-333 multi-coating on every air-to-glass surface, delivering bright, sharp, high-contrast images across a wide range of lighting conditions.

An Adjustable Objective (AO) parallax system allows the shooter to fine-tune focus down to 10 yards, making the optic just as comfortable on rimfire and close-range plinking setups as it is on mid-range hunting rifles. The classic Duplex reticle is set in the second focal plane, keeping the crosshair subtensions consistent regardless of magnification. Windage and elevation adjustments click in precise 1/4 MOA increments with a generous 60 MOA total travel in both directions, and the eyepiece delivers a forgiving 3.5-3.2 inch eye relief.

Built for field use, the scope is waterproof to IPX7, shockproof, and fogproof, sealed to keep optics clear through rain, recoil, and rapid temperature swings. At roughly 14.75 inches long and approximately 1.69 lbs, the S1 4-12x40 AO G2 is a compact, do-it-all hunting optic that brings modern Sightron performance to a familiar, time-tested duplex configuration.