Leupold Mark 4HD 4.5-18x52

• 4.5-18x magnification range: this spread covers a wide span of practical use, giving enough field of view for closer positional shooting while still providing the precision needed for longer-range target identification and shot placement.
• First focal plane illuminated reticle: the reticle keeps its holdover and ranging relationship consistent at every magnification, while the red illumination helps the aiming point stand out quickly against dark targets or shaded backgrounds.
• Locking tactical turrets with Zero Stop: the exposed turret layout supports fast elevation changes, and the locking function with a hard return-to-zero reference reduces the chance of accidental movement during transport or field handling.
• 34 mm maintube with 36.00 mrad elevation travel: the larger tube and generous adjustment range give more room for dialing at distance, which is especially useful on precision rifles with extended-range trajectories.
• Side focus from 25 yd to inf.: parallax can be tuned for everything from short-range zeroing to long-distance shooting, helping keep the target and reticle on the same focal plane for a more precise sight picture.

About the Leupold Mark 4HD Series

Leupold introduced the Mark 4HD series in 2024 as a line of tactical riflescopes built to bridge fast handling and precision work. In Leupold’s lineup, the series sits as a robust, field-oriented option for shooters who want modern dialing features and dependable optical performance without moving into the larger 35mm format used by the Mark 5HD. The series uses Leupold’s Professional-Grade Optical System and maintains a 4:1 zoom ratio across the range, giving each model a practical balance between versatility and straightforward operation.

Mark 4HD riflescopes are offered with 30mm or 34mm maintubes, with first- and second-focal-plane configurations and both MIL and MOA reticle options depending on the model. That makes the series relevant to tactical carbines, general-purpose precision rifles, and long-range setups where shooters may prioritize either rapid target engagement or more deliberate dialing and holdover work. Across the family, the design emphasis stays consistent: durable construction, waterproof, fogproof and shockproof protection, and a control layout intended for repeatable use in demanding field conditions.

About the Leupold Mark 4HD 4.5-18x52

The Leupold Mark 4HD 4.5-18x52 is configured for shooters who need one riflescope to cover a broad working envelope, from mid-range positional stages to longer-range precision shooting. Its 4.5-18x magnification range gives enough low-end usability for finding and tracking targets efficiently, while the upper end provides the image scale needed for precise aiming on smaller or more distant targets. The 52.00 mm objective lens supports a bright, usable image in difficult light, which matters when targets are partly obscured, contrast is low, or shooting continues into the edges of the day.

This model uses a first focal plane reticle, so subtensions remain accurate throughout the zoom range. In practice, that means holdovers, corrections and ranging references stay consistent whether the shooter is working at moderate power for speed or at higher magnification for detail. The red illumination adds visibility when the reticle would otherwise blend into dark terrain, shadowed targets or cluttered backgrounds. Side focus adjustment from 25 yd to inf. helps sharpen the image and reduce parallax error across a wide range of distances, which is particularly useful for rifles that see both range work and field use.

The mechanical layout is equally purpose-driven. Locking tactical turrets are designed for deliberate dialing, while the Zero Stop system gives a clear return point after multiple elevation corrections. With 36.00 mrad of elevation travel and a 34 mm tube, the scope offers the adjustment space needed for extended-range shooting. At 765.00 g and 371.00 mm long, it remains substantial enough for hard-use precision rifles without becoming excessively bulky.

About Leupold

Leupold & Volpel was founded in Portland, Oregon, in 1907 by Fred Leupold and Adam Volpel. The company later introduced its first riflescope, the Plainsman in 1947, and helped shape modern sporting optics with the Duplex reticle in 1962. Today, Leupold & Stevens, Inc. is headquartered in Beaverton, Oregon, and remains family-owned.

Leupold focuses on sport optics for hunting, shooting, and outdoor use, with product lines that include riflescopes, red dot sights, binoculars, spotting scopes, rangefinders, and thermal optics. Within that portfolio, the Mark-series riflescopes represent the company’s tactical and precision-oriented side, while the VX-series serves broader sporting applications. That long specialization in riflescopes is directly relevant to the Mark 4HD, which reflects Leupold’s emphasis on durable construction, practical optical design, and controls intended for repeatable field use.

Main Features

• Magnification: 4.50 x - 18.00 x
• Objective lens diameter: 52.00 mm
• Main tube diameter: 34 mm
• Reticle position: 1. focal plane - FFP
• Illumination: Red, daytime-usable
• Turret type: Tactical
• Turret locking: Yes
• Zero Stop: Yes
• Turret rotation direction: CCW
• Click value: 0.1 Mil / 1/4 MOA
• Elevation adjustment range: 36.00 mrad / 125.00 MOA
• Windage adjustment range: 18.00 mrad / 65.00 MOA
• Eye relief: 91.00 mm - 99.00 mm
• Field of view: 21.10 m/100m - 4.75 m/100m
• Parallax adjustment: Yes - side focus
• Parallax range: 25 yd to inf.
• Fast focus eyepiece: Yes
• Length: 371.00 mm
• Weight: 765.00 g
• Power supply: CR2032
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Made in: USA

Warranty

10 years. This riflescope is covered by a 10-year warranty period.

In the Box

• General Riflescope Manual