Sightmark Triple Duty 10-40x56mm Scope

Featuring the highest magnification in the Sightmark Triple Duty Riflescope series, the 10-40×56 Riflescope is built for the challenges of long distance shooting. This high powered scope is equipped with a Mil-Dot reticle for exceptional range estimation and fully multi coated optics crisp, clear imaging at the most difficult shots. The one piece 30mm tube Offers a wide field of view for quick target acquisition like no other. This precision scope is equipped with a parallax adjustment knob and oversized, locking windage and elevation turrets with 1/8-inch MOA clicks, providing an additional level of accuracy and ensuring that the scope stays zeroed. O-ring sealed and nitrogen purged, the Triple Duty 10-40×56 Riflescope is both fog proof and water resistant.

Sightmark Triple Duty 10-40x56mm Scope Features

Precision accuracy

Windage/Elevation adjustment lock

Second focal plane reticle (true at 10x)

Etched reticle

30mm main tube

Red and green reticle illumination

1/8″ MOA adjustments

Precision multicoated optics

Weatherproof, shockproof, fogproof



Reticle Mil-Dot
Reticle Type Etched
Reticle Color Black and green
Illuminated Reticle yes
Brightness Setting 0 – 5
Finish/Color Matte black
Magnification 10 – 40
Objective Lens Diameter 56 mm
Eyepiece Diameter 37 mm
Exit Pupil Diameter 5.6 – 1.4 mm
Eye Relief 97.5 – 85 mm
Field of View 3.84 – 0.98 m @100m
Field of View 12.6 – 3.22 ft @100yd
Diopter Adjustment 2 to -3
Tube Diameter 30 mm
Tube Piece (single/two) single
Parallax Setting 10 to infinity yds
Windage Range of Adjustment 60 MOA
Elevation Range of Adjustment 60 MOA
Windage & Elevation Lock yes
MOA Adjustment 1/8 MOA
Maximum Recoil 1,200 g’s
Battery Type CR2032
Battery Life (high) 80 – (low) 150 hours
Battery Voltage 3 V
Sunshade yes
Nitrogen Purged yes
Shockproof yes
Fog Proof yes
Focal Plane 2nd
IP Standard IP66
Body Material 6061 Aluminum
Lens material K、ZF、ZK
Lens Coating Fully multi-coated
Mount Type Weaver
Operating Temp,°F/°C -20 to 140 / -29 to 60 F/C
Storage Temperature (°C/°F) 41 to 95 / 5 to 35 F/C
Length 16.4 / 417 in/mm
Width 3.3 / 85 in/mm
Height 3.26 / 83 in/mm
Weight 31.7 oz

More Rifle Scopes

Additional information

Weight 2 lbs
Sightmark Reticle Options

Mil-Dot, Mil-Dot Dot


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