Leupold® Mark 3HD™ 4-14x40mm FireDot TMR Reticle Riflescope P5 Dial


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SKU: LEU180668 Categories: ,

We have a long history of manufacturing rugged and reliable riflescopes that outperform and outlast everything else on the battlefield and in competition. We used that heritage to create an extremely versatile line of tactical scopes for the shooter looking to upgrade every long gun in their safe. The Mark 3HD™ 4-12x40mm is ideal for mid to long-range shots, making it the perfect scope for nearly any rifle in your safe.

Complete with MIL-based adjustments and reticles, HD performance, an exposed elevation adjustment dial, and a low-profile power selector with integrated throw lever, the Mark 3HD series is perfect for anyone who needs a rugged, precise, and repeatable scope. Built around Leupold’s Elite Optical System, it offers the light transmission, glare reduction, and resolution that diehard hunters and shooters demand for all-day performance. The illuminated FireDot® reticle with seven brightness settings and easy-to-use illumination dial will get you on target fast, even in harsh daylight.

And like every Leupold® riflescope, the Mark 3HD was designed, machined, and assembled in our Oregon factory. We test it to ensure it’s absolutely rugged, 100% waterproof and fogproof, and then we guarantee it for a lifetime of performance.


  • 3:1 Zoom Ratio
    • A 3:1 zoom ratio is very common in many scope models. It gives you 3 times more magnification at high power than at low power (model magnification ranges are available in powers of 3x: 1.5-5, 2.5-8, 3-9, 3.5-10, etc.), so you can dial your power down for close encounters or all of the way up for long-range shots.
  • High Definition
    • High-definition, calcium-fluoride lenses ensure incredible clarity at all magnification levels.
  • Custom Dial Compatible
    • Leupold’s Custom Dial System® (CDS®) gives you the ability to customize your turret (adjustment dial) to your exact ballistics and environmental conditions. Once your new custom dial is installed, simply range the target, turn the dial to that number, and aim dead on.
  • Zero Stop
    • The ZeroStop system creates a backstop when returning the dial back to zero, so you don’t accidently turn the dial a full revolution in the wrong direction.
  • Illuminated
    • This scopes comes with an illuminated reticle, which can help you get on target faster in low-light situations.
  • Motion Sensor Technology (MST)
    • Motion Sensor Technology (MST™) extends battery life by automatically deactivating illuminated reticles after five minutes of inactivity and then reactivates instantly as soon as movement is detected.
  • Removable Throw Lever
    • The removable, low-profile throw lever makes changing magnifications quick and easy. It includes a thread protector plug to use when the lever is removed.
  • Waterproof, Fogproof, & Shockproof
    • Leupold pioneered modern waterproof and fogproof technology using advanced internal gasses and sealing methods that withstand extreme temperatures, elevation changes, and shocks, so the internals of the optics stay moisture free and crystal clear for life.
  • FireDot® TMR Reticle
    • Expands on existing MIL Dot reticle design
    • Uses hash marks instead of dots for increased ranging and holdover precision
    • Provides aiming points for both wind and bullet drop compensation
    • 1 MIL is approximately 3.6 inches at 100 yards
    • Hash marks are spaced 0.5 MIL apart, transitioning to 0.2 MIL spacing on the outer edges
    • Not caliber specific
    • Intended to be used on highest magnification in rear (second) focal plane scope
    • MIL based systems are the current military standard


Image Clarity:

Reticle Type Second Focal Plane Reticle FireDot TMR
Illuminated Yes Illumination Settings 8
Light Management System Elite Optical System Glass Type HD Calcium Fluoride
Lens Coating Standard Eye Relief Low Mag (in) 4.9
Eye Relief High Mag (in) 3.7 Twilight Factor Low Mag ~12.7
Twilight Factor High Mag ~23.7 Diopter Type Fast Focus
Parallax Adjustment No Parallax Free Distance (yd) 150

Image Adjustment:

Min Magnification 4x Max Magnification 14x
Objective Lens Diameter (mm) 40 Low Mag Field of View (ft @ 100 yds; Degrees) 21.5; 4.1
High Mag Field of View (ft @ 100 yds; Degrees) 9.9; 1.9 Elevation Turret Style Exposed P5
Elevation Adjustment Range (MOA; MIL; cm @ 100 yds) 68; 19.7; 197 Elevation Dial Travel Limit (MIL) 5.6
Elevation Adjustment Value per Click (MIL) 0.1 Elevation Clicks per Rotation 60
Windage Turret Style Capped Windage Adjustment Range (MOA; MIL; cm @ 100 yds) 68; 19.7; 197
Windage Adjustment Value per Click (MIL) 0.1 Windage Clicks per Rotation 50


Locking Dial No Zero Stop Yes
Indexable Turret CDS Indexing Type Removable Dials, Set Screws
External Rotation Indicator No Illumination Control Textured Dial
Locking Illumination No Auto-Shutoff (hrs) 0.083
Throw Lever Pre-installed Nightvision Compatible Illumination 2 Levels
Motion Sensor Capabilities Yes Electronic Reticle Leveler No
Sunshade/Killflash Compatible Yes (Sold Seperately)

Physical (Refer to Image):

Form Factor Riflescope Attachment Interface (2) 30mm Rings (Sold Seperately)
Mount Height N/A Finish Matte Black
Water Resistance Yes Fogproof Yes
Shockproof Yes Battery Type CR2032
Battery Life (hrs; Low, Med, High) 1600, 1000, 300 Weight (oz) 16.2
Overall Length – A (in) 12.6 Front Mounting Length – C (in) 2.5
Rear Mounting Length – D (in) 1.8 Total Mount Length – B (in) 5.4
Objective Housing Length – F (in) 3.4 Objective Housing Width – G (in) 1.8
Objective Housing Height – G (in) 1.8 Eyepiece Housing Length – E (in) 3.7
Eyepiece Housing Width – H (in) 1.63 Eyepiece Housing Height – H (in) 1.63
Magnification Ring Outside Diameter (in; cm) ~2.1; 5.3 Turret Saddle Depth (in; cm) ~0.2; 0.4

Additional Information:

Built for any shooter who needs a rugged, precise, and repeatable MIL-based scope for their rifle, the Mark 3HD™ delivers elite optical performance and match-grade repeatability under any conditions.

Leupold’s Lifetime Guarantee

  • Anyone can offer you a lifetime warranty, but guaranteeing performance takes serious dedication and craftsmanship. From our Beaverton Oregon factory to the wilderness, the battlefield, and everywhere in between, we won’t let you down.

Elite Optical System

  • Leupold’s Elite Optical System offers excellent dawn-to-dusk light transmission for a bright image when it matters most, elite-level glare reduction in harsh light, and the resolution and clarity that diehard hunters and shooters demand.
Part Number 180668


Manufacturers, importers, suppliers, and distributors may make changes to their products without fanfare. Such changes can lead to discrepancies between the advertised product and the actual product in inventory. While International Shooting Supplies Ltd. endeavors to correctly describe the actual product in inventory, we will not be responsible for unintentional inaccuracies in text and images of the advertised product.



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