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Sightmark SM13018 Triple Duty 10-40x56 Riflescope
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Sightmark SM13018 Triple Duty 10-40x56 Riflescope

Sightmark SM13018 Triple Duty 10-40x56 Riflescope

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*Special Order Express is available for order online and through your selected store. Choose from store pick-up or home delivery. Standard charges apply for home delivery. (learn more)

  • Gun Sight & Scope Features: Varies
  • Mounts To: Weaver Rail
  • Reticle Type: Mil-Dot

Product Description

Available while supplies last.

Triple Duty 10-40x56 Riflescope

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.


  • Reticle: Mil-Dot
  • Reticle Type: Etched
  • Reticle Color: Black, Red, Green
  • Illuminated: Yes
  • Reticle Brightness Settings: 0-5
  • Finish/Color: Matte Black
  • Magnification: 10-40x
  • Objective Lens Diameter: 56mm
  • Eyepiece Diameter: 37mm
  • Exit Pupil Diameter: 5.6mm - 1.4mm
  • Eye Relief: 97.5mm - 85mm
  • Field of View: 3.84-0.98 m@100m / 12.6-3.22 ft @100yd
  • Diopter Adjustment: +2/-3
  • Tube Diameter: 30mm
  • Tube Piece: Single
  • Parallax Setting: 10 yards to ∞
  • Windage Adjustment Range: 60 MOA
  • Elevation Adjustment Range: 60 MOA
  • Windage & Elevation Lock: Yes
  • MOA adjustment (one click): 1/8-in
  • Maximum Recoil (G's): 1200G
  • Battery Type: CR2032
  • Battery Life: 80-150 hours
  • Battery Voltage: 3V
  • Sunshade: No
  • Waterproof/Nitrogen-filled: Yes
  • Shockproof: Yes
  • Fog Proof: Yes
  • Focal Plane: 2nd
  • IP Standard: IP66
  • Lens material/type: K, ZF, BaK
  • Lens Coatings: Fully Multi-Coated
  • Mount Type: Weaver
  • Operating Temperature: -20°C to 60°C / -20°F to 140°F
  • Storage Temperature: 5°C to 35°C / 41°F to 95°F


  • Set of 30mm Weaver rings
  • Flip-up lens covers
  • Lens cloth
Voltage:Battery Powered
Weight:1.98 Pounds
WarrantyLimited Lifetime
Gun Sight & Scope FeaturesIlluminated Reticle
Scope CompatibilityFirearms
helpBoxOptics Coating
Optical coatings reduce internal light loss and glare, ensuring greater image sharpness and contrast. More coatings results in higher image quality but also a higher cost.

Optics CoatingFully Multicoated
Scope CompatibilityAir Guns
Gun Sight & Scope FeaturesVariable Magnification
helpBoxScope Tube Size
Scopes come in two standard sizes. Be sure to pick the size that fits your mounting rings!

Scope Tube Size30mm
Gun Sight & Scope FeaturesWaterproof
Mounts ToWeaver Rail
Gun Sight & Scope FeaturesAdjustable Parallax
helpBoxReticle Type
Reticles help you aim your gun at a target. There are several types of reticles, each of which its own advantages and features.

Reticle TypeMil-Dot

Dimensions & Weights 

Height:3.27 inches
Length:16.42 inches
Width:3.35 inches
Objective Lens Diameter:56mm
Tube Diameter:30mm


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Additional Details

Mfr Part #
Group # 2195341
Category Rifle Sights & Scopes - 19169
Style - 0
Sales Rank 84

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