Leupold Mark 4HD 4.5-18x42 FFP Rifle Scope - M1C3, Illuminated PR1-MOA, 183623

The Leupold Mark 4HD 4.5-18x42 FFP Rifle Scope - M1C3, Illuminated PR1-MOA, 183623 is built for shooters who demand first focal plane accuracy and dependable MOA-based adjustments in a magnification range designed for extended distances. Its 4.5-18x zoom range provides the flexibility needed for both mid-range engagements and long-range precision shooting.

Featuring Leupold's Professional-Grade Optical System, this riflescope delivers strong light transmission, glare reduction, and resolution in challenging conditions. The illuminated PR1-MOA reticle provides precise hold points that remain accurate at all magnification levels, while the M1C3 adjustment system offers repeatable 1/4 MOA dialing.

See all available models in our Leupold Mark 4HD optics collection to match your shooting style.

Best Uses

• Long-range precision shooting with MOA adjustments
• Tactical and competition rifle setups
• Open terrain and extended-distance hunting
• Shooters requiring first focal plane reticle accuracy

Key Features

• 25-Yard Side Focus - Adjusts parallax from close range to infinity for a sharp image
• Professional-Grade Optical System - Delivers clarity, light transmission, and glare reduction
• Motion Sensor Technology (MST) - Extends battery life by deactivating illumination when idle
• Electronic Reticle Level - Helps maintain proper alignment for improved accuracy
• Integrated Throw Lever - Allows fast magnification changes when conditions shift
• Custom BDC Dial Compatible - Allows custom ballistic turret dialing
• Illuminated Reticle - Enhances aiming visibility in low-light conditions
• First Focal Plane - Keeps reticle subtensions accurate at any magnification
• Nightvision Compatible Illumination - Offers micro-adjustable brightness settings
• Waterproof, Fogproof, & Shockproof - Built for durability in harsh conditions

Why This Riflescope Stands Out

This Mark 4HD configuration stands out for shooters who prefer MOA-based dialing with first focal plane precision in a higher magnification range. The PR1-MOA reticle supports detailed holdovers, while the extended zoom range gives shooters more control at distance. It is well suited for applications where precision and consistency are critical.

For shooters comparing MIL and MOA systems, our MOA vs MIL guide outlines the benefits of each for dialing and holdovers.

Specifications

• Finish: Matte
• Reticle: Illuminated PR1-MOA
• Magnification: 4.5-18x
• Objective Lens: 52mm
• Field of View @ 100 yds: 23.1-5.2 ft
• Click Value: 1/4 MOA
• Elevation Adjustment Range: 125 MOA
• Windage Adjustment Range: 65 MOA
• Eye Relief: 3.6-3.9 in
• Parallax: Side Focus (25 yds to Infinity)
• Length: 14.6 in
• Weight: 27 oz
• Tube Size: 34mm

To complete your setup, pair this scope with dependable scope rings and bases for a secure mounting system. You can also explore Leupold accessories to enhance your optic setup.

For proper mounting and performance, review our scope ring height guide.

Frequently Asked Questions

What is the advantage of a first focal plane reticle?
A first focal plane reticle allows holdovers and ranging to remain accurate at all magnification levels.

Does this scope use MOA adjustments?
Yes, it features 1/4 MOA click adjustments with MOA-based elevation and windage travel.

Is this scope suitable for long-range shooting?
Yes, its magnification range and reticle design make it well suited for extended-distance shooting applications.