The Leupold Index Matched Lens System delivers superior resolution from edge to edge of the visual field - even at 14x - along with peak image brightness and optimal contrast. Leupold engineers specify different coating materials for each lens surface in the riflescope, based on the lens' index of refraction, placement and function, layering each coating to eliminate reflections and maximize light transmission.
Every feature was put in place for one purpose: to help you get the maximum advantage from your rifle, whether you're hunting or in competition. Outstanding accuracy, legendary ruggedness, and absolute waterproof integrity. All Leupold optics offer performance that makes them equally at home in hunting or tactical environments.
Leupold mark 4 Extended Range/Tactical riflescopes are excellent choices for both long-range hunting and varminting. Likewise long-range competitive shooters and members of the Fifty Caliber Shooters Association - men and women who shoot competitively at ranges of 600 yards or more - rely on the accuracy and durability of these scopes.
The Tactical Milling Reticle (TMR) expands on existing Mil Dot reticles by using various sized and spaced hash marks on the vertical and horizontal stadia for increased ranging precision, accuracy, and quick one-meter range estimating reference points. All Mil Dot calculations are TMR compatible. To use the system, simply determine the range to the target using the mil system, then, use the corresponding aiming point that is matched to your cartridge to engage the target.
With the reticle in the front focal plane of the ER/T, the reticle magnifies with the image so you can estimate range using Leupold's Tactical Milling reticle at any magnification setting.
Other features for the Mark-4 ER/T M5 FFP Rifle Scope include: 30mm maintube; tall adjustment dials; 1Mil Elevation, and 1Mil Windage adjustments; 60-MOA of both windage and elevation adjustment. Side focus parallax adjustment for fast, easy parallax focusing from 50 yards to infinity, from any shooting position. Flip-open lens covers are standard issue with each Mark-4 ER/T Leupold rifle scope.
The Mark-4 ER/T 4.5-14x50 M5 Rifle Scope is backed by Leupold's Tactical Optical Products Warranty.
Objective Lens Diameter, mm
Field of View (FOV) @ 100yds, ft / FOV @ 100m, m
11.2–4.4 / 3.7–1.4
Exit Pupil, mm
Eye Relief, mm
Tube Diameter, mm
Windage Adjustment Range, in @ 100yds
60" (60 MOA)
Elevation Adjustment Range, in @ 100yds
60" (60 MOA)
Tactical Milling (TMR)
Index Matched Lens System
Objective Outside Diameter, mm
Eyepiece Outside Diameter, mm
The Index Matched Lens System delivers superior resolution from edge to edge of the visual field, along with peak image brightness and optimal contrast
Side focus parallax adjustment for fast, easy parallax focusing from 50 yards to infinity, from any shooting position
Tall adjustment dials; 1Mil Elevation, and 1Mil Windage adjustments
60-MOA each of windage and elevation adjustment range
The 30mm maintube offers incredible strength and allows for the greater range of windage and elevation adjustment
Flip-open lens covers are standard issue with each Mark-4 ER/T riflescope
Rugged and absolutely waterproof, the ER/T is built to Leupold Mark-4 standards, and can withstand incredible abuse
The reticle is magnified along with the image, so you can estimate range at any magnification setting
Tactical Milling Reticle (TMR) provides accuracy of range estimation for hunters and target shooters
Due to the nature of this item, it may be restricted from shipment to the territories listed under Shipping Restrictions. It may require a permit or may be prohibited from ownership in these areas. Contact your local law enforcement/government officials to find out more. If you add it to the shopping cart and check out with it, it may be removed from your order by our customer service team (your credit card will not be charged for the item).