51° Multi-Purpose Night Vision Monocular


Model: MNVD-51 3A
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With a wide 51-degree field of view, the FLIR MNVD-51 offers enhanced situational awareness without moving the optic. Head, helmet, and weapon mounting options allow hands-free operation while a built-in IR illuminator and flood lens improve vision in complete darkness. 40 hours of battery life is possible with a single AA or CR123A battery.

Wide-Angle Night Vision for Complete Awareness

  • Versatile Mounting Options

    Added hands-free functionality for simple head, helmet, and weapon mounting.

  • Rugged Endurance

    Multi-coated optics and composite housing provide ruggedness and 40-hour runtime with a single AA or CR123A battery allows constant vision.

  • Superior Awareness

    Wide 51-degree field of view and onboard IR illuminator provides outstanding situational awareness in complete darkness.

System Overview
Auto Power Off
Dimensions (L x W x H)
109 x 48 x 73 mm (4.1 x 1.9 x 2.8 in)
Focus Range
0.25 m to Infinity
Product Weight
0.31 kg (0.7 lbs)
Tripod Mount
2 Years 
Height of the Scope Axis above Rail
Lens System
F/1.26; 19mm
1x standard (3x, 5x optional)
Eye Relief [mm]
IIT Generation
Gen 3 Alpha (High Performance) MG
Photocathode Type
Windage_Elevation Adjustment
Optional Accessories
Swing Arm #172, Swing Arm #37, Dual Bridge, Goggle Kit #2, Helmet Mount #4, Dovetail to Weaver Transfer Piece #21, ARMSAIGHT by FLIR Scope Adapter Mount #6, QRM - Quick Release Picatinny Mount Adapter #26/#142, Extended Rail Adapter #85, Universal Camera Adapter #45, Camera Adapter #46, Demist Shield #34, Sacrificial Window #30, Shutter Eye-Guard #82, 3x Afocal Lens Kit (for MNVD-51), 5x Afocal Lens (for MNVD-51), 3x Afocal Lens #22 (Nyx-14, Nyx-14-Pro, N-14, Nyx-7 Pro), 5x Afocal Lens (Nyx-14, Nyx-14-Pro, N-14, Nyx-7 Pro), IR850XLR Afocal Doubler, IR850-XLR Detachable LED Extra Long Range Infrared Illuminator, Mil-Standard Hard Shipping/Storage Case #101
Included Accessories
Packing Box, Soft Carrying Case, Lens Tissue, Quick Start Guide
Connections & Communications
Remote Control
Environmental & Approvals
Operating Temperature
-40°C to +50°C (-40°F to +122°F)
Storage Temperature
-50°C to +50°C (-58°F to +122°F)
Imaging & Optical
Diopter Adjustment
-6 to +2 dpt
Field of View
Reticle Type
Automatic Brightness Control
Bright Light Cut_off
Exit Pupil Diameter [mm]
Infrared Illuminator
Detachable Long Range IR and Built-in with pivotal flood lens
IR Indicator
Yes (In FOV)
Manual Gain Control
Reticle Color
Battery life
Up to 40 hours
Power Supply
CR123 Lithium 3V (1), or AA Alkaline 1.5V (1), or any AA or CR123 type rechargeable batteries with voltage from 1.2V to 3.2V (1)
Low Battery Indicator
Yes (In FOV)

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FLIR MNVD-51 - Model: MNVD-51 3A

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