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Description
advanced night vision goggles PVS-31C-4B Advanced Dual-Tube Night Vision Goggles — CTOMSDescription Experience the superior situational awareness of the PVS 31C 4B, proudly made by GSCI Advanced Photonics. This dual tube goggle system has an ergonomic low profile design and is equipped with the latest technological advancements and perfected over 30 years of GSCI's engineering experience. Built for durability, it includes a lightweight and rugged housing combined with advanced multi coated optics for exceptional image quality and can
Description
Experience the superior situational awareness of the PVS-31C-4B, proudly made by GSCI Advanced Photonics. This dual-tube goggle system has an ergonomic low-profile design and is equipped with the latest technological advancements and perfected over 30 years of GSCI's engineering experience. Built for durability, it includes a lightweight and rugged housing combined with advanced multi-coated optics for exceptional image quality and can withstand up to the weight of a pick-up truck and a drop from two meters.
Other unique operational features, such as instant IR (Morse Code Capability), standard IR (Map Reading / Zero Light Capability), external battery power port, flip-up off, selective channel engagement and stow safety provide remarkable performance and reliability.
With an array of optional accessories including magnification lenses, head mounting systems, battery packs (Including MVP-240™), and recording devices, the unit accommodates 1xAA and 1xCR123 batteries. This NVG has emerged as the preferred choice among numerous users, including law enforcement, and military agencies worldwide.
Advantages
- Adjustable Dovetail Interface
- Manual Gain Control
- Convienient DIgital Push Button Operation
- Powered by 1 AA or 1 CR123 Battery
- Built-In IR Illuminator
- Built-In Automatic Light Overload Shut-Off System
- External Power Port
- Momentary and Constant IR-On Button
- Stow Safety
- Flip-Up Off Features
Kit Contents
- Dual-Tube Night Vision Goggles Dovetail Bracket (Pre-Installed)
- Rubber Eyecups (2pcs, installed on the device)
- Sacrificial Window (2pcs)
- Stow Safety Feature (Integrated)
- AA Battery Extension Adapter (Installed on the device)
- Rubber Daytime Filters with Training Hole (Installed on the device)
- Adjustment Kit (Alley Ley + Mini-Wrench)
- Neck Cord
- USB Power Cable
- Soft Carrying Pouch
- User Manual
- Cleaning Kit (3-in-1 Multi-Pen + Soft Cleaning Cloth)
Optional Additional Equipment
- GSCI-VIVID Lightweight High-Performance Front and Rear Optics (Model Name: PVS-31C-4B-MOD)
- Advanced Helmet Mount GR8™
- Universal Multi-Voltage Battery Back MVP-240™
- Hard Carrying Case: Waterproof with Foam Insert
- Advanced Helmet Harness HMH-1 for MICH / ACH Helmets
- 3X Magnification Afocal Add-On Objective Lens SL-3: Snap-On or Screw-In
- 5X Magnification Afocal Add-On Objective Lens SL-5: Snap-On or Screw-In
- Smartphone Camera Adapter CAS-14
- Tactical Infrared Illuminator IR-250S: Kit Includes IR-250S (850nm), Remote Control, Picatinny Mount
- Digital HD Recorder with Built-In Display and Video Output NVR-714-D
Features
- Universal Night Operations Tool
- Multi-Use System Design
- Unique Safety Features
- Extended Range Observation
- High Situational Awareness
- Preferred Choice of NATO Forces
- External Power Port
- Compatibility with Head Gear and Helmet Mounts.
- Flip-Up-Off Feature: Automatically turns off when flipped up.
- Stow Safety Feature: Shuts off the unit when stowed and powers it back on when returned to the horizontal position.
- Selective Channel Engagement: When used with GR8 or any compatible mount, articulating night vision channel up disengages it - PVS-31-4B can effectively become a single-eye goggle system.
- External Power Port: Along with conventional AA and CR123 Batteries, PVS-31-4B can be powered from external power sources such as GSCI MVP-240™, USB power banks and 12V car power supply.
Specifications
| Optical Magnification | 1X |
| Objective Lens | 27mm, f/1.2 |
| Field Of View | 40° |
| Focusing Range | 0.25m .. Infinity |
| Diopter Adjustment Range | -6 .. +2 |
| Digital Push Button Controls | Yes |
| Built-In IR Illuminator | Yes: 950 nm |
| IR-On Indicator | Yes: concealed into FOV |
| 3-Position Switch | Yes: Off/On/IR |
| Adjustable IR Illuminator Intensity | Yes: 3 Stages |
| Adjustable Light Sensor Sensitivity | Yes: 3 Stages |
| Programmable Automatic Shutdown | Yes:10 .. 60 Minutes of Inactivity |
| Bright Light Protection | Yes |
| Bright Light Sensor | Built-In |
| Low-Battery Indicator | Yes: concealed into FOV |
| Stow Safety Feature | Yes |
| Flip-Up-Off Feature | Yes |
| Power Source | 1x AA / MVP-240™ |
| External Power Port | Optional: 4V DC .. 15V DC |
| Battery Life | 40 Hours on 1x AA, 240 Hours with MVP-240™ |
| Environmental Protection | Waterproof |
| Dimensions | 108 x 58 x 51mm |
| Weight | 162 grams |
| Operating Temperature | -40°C .. +50°C |
| Made In | Canada, ITAR-Free |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Great quality and price. Excellent value.
Style: X5206 with Two Woofers
Sounds great loud
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Best karaoke speaker!
Style: X3206 with One Woofer, Style: X3206 with One Woofer
I was looking to buy a karaoke speaker and all were underpowered or overpriced. This went on sale ~100 and for that price it is THE perfect karaoke speaker.
It has dual mic inputs for duets, (4) voice effects, voice echo. Each mic had it's own volume adjustment, there's also adjustment for echo, bass and treble. These are all knobs which i like a lot. The volume is push button which i don't like and would have preferred a knob also . Still, it's a lot of fun for karaoke!
What I Iike a lot is the line out. Why? If I feel it needs more power, I can connect to any other speaker with a 3.5mm input. To me this is better than TWS systems that only pair with the same model(s).
Speaking of power, it is ok for the size and price. It will sound good indoors at your home or backyard. It may not be the best for a larger hall. But it does have that line-out jack that will let you connect to (almost) any other speaker you want.
What I have found lacking so far is the battery life. Fully charged, it was used over BT connection for music at ~50% volume for maybe 1.5 hours with lights and for podcasts at ~15% volume, no lights for 6 .5 hours before it died. So the 14 hour claim must be an exaggeration or only under very specific conditions.
Also, bass is adequate, but it's not a 'booming' bass but you can tell it's there. Overall volume is good but will also depend on the device connected.
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Reviewed in the United States on October 31, 2022
★★★★★ 5
Great for Karaoke Nights and Small Parties!
Style: X3206 with One Woofer, Style: X3206 with One Woofer
We used the speaker for a recent get-together with around 30 people, and it did not disappoint. The karaoke features and mic input were a big hit, and the party lights added a fun touch. It's super easy to use, and the sound quality—especially the deep bass—is impressive for its size.
One thing I really appreciated is the audio-in and audio-out options. If you have a DJ setup, it's super convenient to connect the speaker directly to your deck—no hassle at all. Bluetooth connection took a bit longer than expected to pair, but nothing too bad. Once connected, it worked smoothly the whole night.
Great buy for anyone looking for a solid party speaker with versatility!
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Reviewed in the United States on June 18, 2025
★★★★★ 1
Terrible sound quality and bass
Style: X5206 with Two Woofers
Sounds cheap, didn’t come with a charger, and the bass does not vibrate at all, so I bought got a jbl 110 the next day. The jbl is a thousand times better, the bass blew me away, and the sound is very high quality. Don’t waste your time and money on it get a jbl
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Reviewed in the United States on March 19, 2026
★★★★★ 4
Turn me up turbo
Style: X3206 with One Woofer
I bought this for my performances assuming well of the brand (I’m a musician). My biggest complaint is that I wish it were louder. There have been performances where they’ve asked me to turn the volume up and surely enough it’s already at its loudest volume 🥴. The battery life is pretty good, it’s never died on me and I’ve had 4hr gigs before. The light is also a nice touch (and can turn on and off per your request of hitting a button). It makes a sound when you turn it on and off which can also be muted if you can catch it in time. Pretty easy for me to carry from place to place. Im not sure I’d recommend it to a musician but depending on what it is you need it for- it’s truly not bad. For the price it’s pretty average and until I can invest in a louder option, it gets the job done pretty okay.
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Reviewed in the United States on January 21, 2026