Vortex Siren 3-18x44 Riflescope|MOA

Overview

Start with incredible edge-to-edge sharpness. Add a first focal plane, illuminated reticle for fast reads at any magnification and lighting situation. Top it with our RevStop® Zero System for reliable return to zero, and locking turret for fast, stay-put adjustments. Build it all around a 34mm tube that accommodates massive amounts of elevation and windage travel, and you’ve got a long-distance impact machine that’ll have you wondering how you ever shot without it.

Specifications

Magnification	3-18x
Objective Lens Diameter	44 mm
Focal Plane	First Focal Plane
Reticle	VMR-4 (MOA)
Eye Relief	3.8"
Field of View	39.3' - 6.7' @ 100 yds.
Turret Style	Exposed Elevation Capped Windage
Tube Size	34 mm
Adjustment Graduation	1/4 MOA
Travel Per Rotation	25 MOA
Max Elevation Adjustment	154 MOA
Max Windage Adjustment	62 MOA
Parallax Setting	10 yds. - ∞
Length	13.3"
Weight	26.6 oz.
Total Elevation Adjustment w/ RevStop® installed	48.5 MOA

Features

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XD™ Optical System	Premium optical system and select glass elements deliver exceptional resolution, edge-to-edge sharpness, greatly reduce chromatic aberration and guarantee clean, bright, sharp, high-contrast images.
Illuminated Reticle	Provides fast target acquisition in any lighting scenario.
RevStop® Zero System	For a rock-solid return to zero after turret adjustments.
Fully Multi-Coated Lenses	Anti-reflective coatings on all air-to-glass surfaces provide increased light transmission for greater clarity and low-light performance.
Nitrogen Gas Purged	Gas purged and O-ring sealed for fogproof and waterproof performance in all conditions.
ArmorTek®	Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.
Aircraft-Grade Aluminum	Constructed from a solid block of aircraft-grade aluminum for strength and rigidity.
Low Glare Matte Black Annodize	Corrosion and wear resistant anodization provides low-glare matte surface and helps camouflage the shooter's position.
Waterproof	Designed to withstand harsh weather conditions.
Fogproof	Nitrogen gas purging prevents internal fogging over a wide range of temperatures.
Shockproof	Designed to withstand the highest levels of recoil and impact.

Reticle

VMR-4 (MOA)

Designed to maximize long-distance shooting and ranging abilities, the VMR-4 MOA reticle can be used to effectively determine ranges, holdovers, windage corrections, and moving target leads. Ultra-precision laser etching on the glass reticle ensures that MOA specifications are kept to the tightest tolerances possible. The fine center crosshair subtensions on the VMR-4 MOA reticle were carefully chosen to provide the optimum balance between precision aiming and low-light visibility. Includes windage reference dots on drop lines.

Subtension detail for Siren 3-18x44 riflescope with VMR-4 MOA reticle.

What's In The Box?