888.588.8569

Night Optics Iris, Gen 3 Gated, Dual-Tube Night Vision Binocular, 3.6X

The D-221 (Generation 2+) or D-321 (Generation 3) high performance, modular, hand-held night vision binocular uses dual image intensifier tubes to provide crisp, clear images in the darkest conditions.

The binocular includes advanced features of automatic brightness and gain control. Each image tube operates independently, providing excellent redundancy. The unique patented design eliminates any need for interpupillary adjustment and reduces the size and weight of the unit. An integrated near IR illuminator enhances the ability to operate the goggle in confined spaces.

The powerful 3.6x D-221B/321B Binocular converts easily into the D-221G/321G 1x night vision Goggle with a 40° wide field of view by simple replacement of front objective lenses. The goggle attaches quickly to an ambidextrous headgear assembly for hands-free use.

The D-221/321 is the most affordable stereoscopic night vision goggle/binocular currently available on the market.

Includes:

  • D-321B Night Vision Binocular (helmet & headgear not included)
  • 3.6x 80mm f1.6 objective lenses
  • Hard case
  • 1 3v CR123 battery
  • Operating Manual

D-321B | Gen 3 Autogated US Dual-Tube Binocular

Night Optics Part #NB-321-3G
Resolution64-72 lp/mm
Power SupplyGated
Film TypeThin
Magnification3.6x or (1x optional)
Lens System80 mm f1.6
FOV15°
FOV @ 1000 yards790 ft
FOV @ 1000 meters263 m
Range of Focus10 ft to ∞
25 cm to ∞
Detection Range1230 ft
375 m
Recognition Range984 ft
300 m
Diopter Adjustment+4 to -4
Weather ResistantYes
Camera/Camcorder AdaptableNo
IR IlluminatorYes
Battery Type/Life3v CR123 / 30 hours
Dimensions7" x 5" x 2.5"
178 mm x 127 mm x 64 mm
Weight35 oz
992 g
Operating Temperature-4°F to 113°F
-20°C to +45°C
Warranty2 Years

FREE standard shipping for online orders with with an order total of $99 or higher.
$6.95 standard shipping for online orders with an order total of $98.99 or below. Qualifying amount applies to merchandise only. Subject to change without notice. Offer valid for standard shipping within the contiguous United States (some restrictions apply such as shipping to Canada, Alaska, Hawaii, and all other destinations outside the continental United States including APO and FPO addresses are not eligible for this promotion and may incur additional charges). Additional fees apply to haz-mat/chemicals/ aerosols, over sized or unusually heavy items/orders,including but not limited to ladders, fire hose, pepper spray, fire extinguishers, full-size light bars and spike strips. Some vendors are also excluded, view a list of excluded brands here.


Shipping rates apply to all products. Some orders may require additional shipping charges.

Standard Shipping Charges

Charges for addresses in the contiguous United States only.
Order Total Standard 2-Day Air** Next Day Delivery
Up to $25 $8.49 $6.95 $28.48 $33.48
$25.01 to $50.00 $10.49 $6.95 $30.48 $35.48
$50.01 to $98.99 $12.49 $6.95 $32.48 $37.48
$99.00 to $150.00 $14.49 $0 $34.48 $39.48
$150.01 to $200 $16.49 $0 $36.48 $41.48
$200.01 to $250.00 $18.49 $0 $38.48 $43.48
$250.01 to $300.00 $20.49 $0 $40.48 $45.48
$300.01 to $350.00 $23.49 $0 $43.48 $48.48
$350.01 to $400.00 $25.49 $0 $45.48 $50.48
$400.01 to $500.00 $27.49 $0 $47.48 $52.48
$500.01 to $750.00 $31.49 $0 $51.48 $56.48
$750.01 to $1,000 $34.49 $0 $54.48 $59.48
$1,000.01 and over $38.49 $0 Contact us for a quote

Night Optics Iris, Gen 3 Gated, Dual-Tube Night Vision Binocular, 3.6X

Item #: NB3213G
$6,399.99

This item is available
by phone order only.

Please call 888.588.8569 and our customer
service department will place your order today!

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Night Optics Night Optics USA, Inc. is widely recognized as an innovative industry leader and provider of professional quality night vision products and Thermal technologies for commercial, law enforcement and military. From night vision monoculars and binoculars to thermal riflescopes, Night Optics’ continuously evolving product line incorporates the latest technological developments and end-user input. Shop CHIEF Supply for your night vision needs from the vast selection of products from Night Optic.
Night Optics night vision

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