Sightmark Triple Duty Rifle Scope 30mm Tube 10-40x 56mm Side Focus Illuminated Mil-Dot Reticle Matte

Product #: 872293 Sightmark #: SM13018 UPC #: 810119011046
$319.97 & SHIPS FREE
Please Sign In or Create an Account to use this feature.
  • Information


  • Mil-Dot Etched Reticle
  • 30mm Main Tube
  • Precision Multi-coated optics
  • Internal Lit Reticle
  • 1/8” Locking MOA
  • Weatherproof, Shockproof, and Fogproof


Featuring the highest magnification in the Sightmark triple Duty Riflescope series, the 10-40x56 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 10-40x56 Riflescope is both fog proof and water resistant. Powered by a CR2032 3V battery.


  • Set of 30 mm Rings
  • Flip-Up Lens Covers
  • Lens Cloth


Technical Information

Tube Diameter: 30mm

Adjustment Click Value: 1/8 MOA

Adjustment Type: Click

Exposed Turrets: Yes

Finger Adjustable Turrets: Yes

Turrets Resettable to Zero: Yes

Zero Stop: No

Turret Height: High

Fast Focus Eyepiece: Yes

Lens Coating: Fully Coated

Warranty:  Limited Lifetime

Rings Included: Yes

Sunshade Included: No

Sunshade Length: N/A

Lens Covers Included: Yes

Power Variability:  Variable

Min power: 10X

Max power: 40X

Reticle Construction: Etched

Reticle: Illuminated Mil-Dot

Illuminated Reticle: Yes

Battery Type:  CR2032 (Not Included)

Holdover reticle: Yes

Reticle Focal Plane Location: 2nd

Parallax Adjustment: Side Focus 10 to Infinity

Finish: Matte

Water/Fogproof: Yes

Shockproof: Yes

Objective Bell Diameter: 61mm

Ocular Bell Diameter:  43mm

Eye Relief: 97.5mm-85mm

Exit Pupil Diameter: 5.6mm-1.4mm

Weight: 31.7 oz.

Max Internal Adjustment: 60 MOA Windage, 60 MOA Elevation

Field of View at 100 Yards: 12.6'-3.22'

Dimensions, in inches unless otherwise stated:
A: 16.4
B: Not Specified by Manufacturer
C: Not Specified by Manufacturer
D: Not Specified by Manufacturer
E: Not Specified by Manufacturer
F: Not Specified by Manufacturer
G: 61mm

H: 43mm



Was this information helpful? Yes No

Thank you! Your valuable feedback helps improve our product information and offering.

Help Us Improve

Please enter the missing required fields:

    Do you accept our terms and conditions? *
    Know someone who may like this? Email this Page to a Friend

    Customer Reviews

    The statements and opinions expressed within Customer Reviews reflect each author's personal perspective and do not imply endorsement by MidwayUSA, its Employees or any other organization. Customers should in no way infer that MidwayUSA has validated review information as safe, accurate or appropriate.

    NOTE: Prices, specifications and availability are subject to change without notice. We reserve the right to correct typographic, photographic and/or descriptive errors.