Description
The Leupold Mark 4HD 6-24×52 is the configuration you reach for when the target is way out there and the margin for error is thin. It rides on a 34mm maintube that gives you plenty of internal travel to dial, wraps a 52mm objective around Leupold's Professional-Grade Optical System, and puts the PR2-MIL reticle in the first focal plane so your holdovers stay true at any magnification. The 6x low end lets you scan and settle in, while the 24x top end has the resolution for precise shot placement at distance.
What Sets the Mark 4HD 6-24×52 Apart
The M5C3 ZeroLock elevation dial is the heart of this scope. You get a three-turn design with 0.1 MIL clicks and 36 MIL of total elevation travel, plus visual and tactile revolution indicators so you always know where you are in the dial. ZeroLock keeps things from drifting when the rifle gets knocked around in a case or on the truck, and it snaps back to a repeatable zero every time. Windage is ZeroLock as well, so both dials stay put until you tell them otherwise. This one is also custom dial (CDS) compatible if you want a turret cut to your exact load and conditions.
Glass and Reticle on the Mark 4HD
Guard-Ion lens coating sheds water and fingerprints, and the HD glass delivers the edge-to-edge sharpness and glare control that Leupold's professional line is known for. The illuminated PR2-MIL reticle stays crisp and visible as light fades, and Motion Sensor Technology shuts the illumination off after a period of inactivity to save battery, then wakes it back up when you move. The side focus dials out parallax all the way down to 25 yards for a clean, stationary reticle at nearly any range.
Like every Leupold, it's waterproof and fogproof, built in Beaverton, Oregon, and covered by the Lifetime Guarantee. For precision rifle matches, long-range steel, or a dedicated distance hunting rig, this is a lot of proven optic in a relatively light 27.5-ounce package.
Key Specifications
- Manufacturer: Leupold
- Model: Mark 4HD
- Manufacturer Part Number: 188484
- UPC: 030317057497
- Magnification: 6-24x
- Objective Diameter: 52mm
- Tube Diameter: 34mm
- Reticle: PR2-MIL, First Focal Plane, Illuminated
- Focal Plane: First Focal Plane (FFP)
- Elevation System: M5C3 ZeroLock, 3-turn
- Click Value: 0.1 MIL
- Elevation Adjustment Range: 36 MIL
- Windage Adjustment Range: 18 MIL
- Parallax: Side focus, 25 yards to infinity
- Eye Relief: 3.9 in
- Length: 14.6 in
- Weight: 27.5 oz
- Lens Coating: Guard-Ion
- Color: Black
What’s Included
- Leupold Mark 4HD 6-24×52 riflescope
- Removable throw lever
- Lens covers
- Owner's manual
Frequently Asked Questions
Is the reticle on the Mark 4HD 6-24×52 in the first or second focal plane?
It's a first focal plane PR2-MIL reticle, meaning the reticle grows and shrinks along with the target as you change magnification. That keeps every hash mark and holdover true to scale no matter what power you're on. For long-range shooters using the reticle for ranging and holds, FFP is exactly what you want.
How much elevation travel does the M5C3 turret give you?
The M5C3 elevation dial is a three-turn design with 0.1 MIL clicks and 36 MIL of total elevation adjustment. It has visual and tactile revolution indicators so you never lose track of which turn you're on. The ZeroLock feature prevents accidental movement and returns to a repeatable zero every time.
Is the PR2-MIL reticle on this Mark 4HD illuminated?
Yes, this model carries an illuminated PR2-MIL reticle that stays crisp and visible as light fades. It uses Motion Sensor Technology to shut illumination off after a stretch of inactivity to conserve battery, then reactivates when it senses movement. That helps you avoid a dead battery at the worst possible moment.
What rings do I need for the Mark 4HD 6-24×52?
This scope uses a 34mm maintube, so you'll need 34mm rings or a one-piece mount. The 34mm tube is a common precision-rifle standard, so mounts and rings in nearly every height and configuration are easy to find. Pick a height that clears the 52mm objective on your particular rifle.





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