Mark 4HD 4.5-18×52 34mm M5C3

The Mark 4HD 4.5-18×52 is a first focal plane riflescope built around a 34mm maintube and designed for long-range precision shooting. It delivers 4.5x to 18x magnification with a 23.1 to 5.5 foot field of view at 100 yards, and the FFP PR2-MIL reticle allows holdover calculations that remain consistent across the entire magnification range. Eye relief runs 3.9 to 3.6 inches depending on magnification setting. The scope features M5C3 Zerolock elevation adjustments paired with a Zerolock windage dial for reliable zero retention; a 25-yard side focus mechanism handles parallax correction. Coated optics, along with shockproof, waterproof, and fogproof construction, support field durability. At 27.5 ounces and 14.6 inches overall, it balances optical performance with manageable weight. The Custom BDC dial is compatible for users who want to integrate ballistic drop compensation into their shooting system.