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Leupold designed the Dark Earth 3.5-10x40 Mark 4 LR/T M2 Riflescope for long range tactical applications and outfitted it to withstand the toughest of conditions, carrying out the most demanding tasks. The optical system was engineered to provide superior performance, and features Leupold's proprietary Xtended Twilight Lens System with fully multi-coated lenses for improved image brightness and true color in low-light. Additionally, their ion-assisted DiamondCoat 2 lens coating protects against debris and abrasions while blackened-edge optical elements reduce stray light from glare and improve image contrast. All optical elements are also made of eco-friendly, lead-free optical glass. Another highlight of this scope is the illuminated Tactical Milling Reticle (TMR), located in the 2nd focal plane. It features four posts with mid-point reference bars and an illuminated crosshair with mil-based vertical and horizontal markings.
Complementing the advanced optical system, this riflescope also features a solid and precise opto-mechanical construction. The housing is made from aluminum and features a 30mm single-piece maintube, water and fogproof performance, a fast focus lockable eyepiece, and a slip-free texturing on M2 BDC turrets and other adjustment rings. The M2 BDC turrets offer precision graduation and 1/2 MOA windage and 1/2 MOA elevation increments. Also noteworthy is the 3x twin bias spring erector system that provides more holding force to withstand recoil. To protect the optics during transport, this optic includes two flip-up lens caps.
2nd focal plane
Four posts with mid-point reference bars
Illuminated crosshair with mil-based markings
Eight brightness levels
Parallax-free from 75 yd to infinity
3.2 - 9.5x actual magnification
40mm objective lens diameter
Fully multi-coated optics
Xtended Twilight coatings improve image brightness in low-light
Ion-assisted coating process
Unparalleled resistance to scratching and abrasion
Blackened lens edges:
Reduce glare from stray light
Improve clarity and contrast
Eco-friendly, lead-free optical glass
Eye relief: 4.7-3.4"
Use and Handling
80 MOA windage and elevation ranges
M2 BDC - Bullet Drop Compensation turrets:
1/2 MOA per click windage
1/2 MOA per click elevation
30mm maintube diameter
Single-piece aluminum housing
Argon-Krypton fill, fogproof
Fast focus locking eyepiece
Flip-up lens covers
Tall, tactical-style finger-operated turrets
Twin Bias Spring, 3x erector system
In the Box
Leupold 3.5-10x40 Mark 4 LR/T M2 Side Focus Riflescope (TMR Illuminated Reticle, Dark Earth)
Flip-Up Lens Covers
Golden Ring Two-Year Electronics Warranty
Golden Ring Full Lifetime Transferrable Warranty
Table of Contents
Actual magnification: 3.2-9.5x
Objective Lens Diameter
TMR reticle 2nd focal plane
Field of View
29.9 - 11' @ 100 yd / 10 - 3.7 m @ 100 m
75 yd / 68.6 m to infinity
4.7 - 3.4" / 119.4 - 86.4 mm
Exit Pupil Diameter
12.5 - 4.2 mm
Impact Point Correction
1/2 MOA elevation 1/2 MOA windage
Maximum Windage/Elevation Adjustment
Waterproof and fogproof
13.5" / 342 mm
19.5 oz / 552.8 g
Leupold 3.5-10x40 Mark 4 LR/T M2 Side Focus Riflescope (TMR Illuminated Reticle, Dark Earth) Review