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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]
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4.8 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Accessible Anthropology from a Christian Perspective in a Postmodern World
Format: Paperback
I had this as assigned reading for an upcoming seminary class. Beforehand, I read a TGC review by David Shaw which was highly positive but also offered three weaknesses. He expressed them as a wish for: more concentrated space devoted to the Christian view of the human body as well as a schema that goes beyond creation, fall, and redemption and includes inaugurated and future eschatology; a section on secular worldview rather than piecemeal throughout; and worldview language without pushing for worldview as a category, which he saw as dangerous. I actually liked the secular worldview interwoven through each chapter and thought that was helpful. However, I agree with the other weaknesses, particularly Shaw's last one.
I went ahead and found a journal article on the Christian view of the human body so I would have a frame of reference as I read. I'm so glad I did. I was not looking for something specifically Calvinistic, but leave it to Calvin to have written enough so that someone could analyze it! The name of the article is "Theology, Anthropology, and the Human Body in Calvin's Institutes of the Christian Religion" by Margaret R Miles in the Harvard Theological Review. I also have sources for eschatology and won't speak to these two topics that I felt were missing.
What I will say is this. I got a much better idea of what's going on in secular thought because of Pearcey's readable style without any dumbing down of concepts. That alone makes Love Thy Body well worth the read. However, I was disappointed with the ending, particularly pages 258 to the end. On 258, she correctly states that "we do not create marriage so much as we enter into a pre-existing social institution." Then on 259, she states that "Christians are called to form a model society--the local church--to demonstrate to the world a balanced interplay of individuality and relationship, of unity and diversity". Further down the page, she quotes, "Human beings are called to reproduce on earth the mystery of mutual love that the Trinity lives in heaven."
I don't have a problem with these statements in isolation. The Apostle Paul exhorted Timothy to 'save both yourself and your hearers', attributing to Timothy the ability to save in terms of his being a secondary means. However, in context of what Shaw describes as 'worldview as category', my question is this. Are we called to 'form' or create a model society or to enter into it? I would argue that believers enter the kingdom of God who sets the agenda. Do they 'reproduce on earth the mystery of mutual love that the Trinity lives in heaven' or is this a gospel imperative flowing out of gospel indicatives? I would argue for the latter.
At another place, Pearcey uses the phraseology 'Christianity offers' but wouldn't it be better stated that 'Christianity is'? In framing her argument in terms of worldview, Shaw notes that she inadvertently undermines her own argument. I would add that we are pointed in the direction of our minds alone instead of towards our embodied persons (including our minds) joined to the resurrected embodied Christ. "We are...always carrying in the body the death of Jesus, so that the life of Jesus may also be manifested in our bodies" (2 Cor 4:8, 10).
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Reviewed in the United States on November 29, 2019
★★★★★ 5
Love Thy Body
Format: Hardcover
Love Thy Body, Nancy Pearcey
Written for Tenth Grade upwards (My granddaughter will read it.) Excellent for group studies. A study guide is included in the back of the book.
About a month ago Nancy Pearcey was kind enough to pull me into her pre-launch group for her new book, Love Thy Body. Her book was sent to me that I might read it prior to its release, the only requirement being that I write an “honest review.”
Apologetics can be a rollercoaster ride for me. With each page I found myself saying, “Yes. OK, that’s good. Excellent! Pure gold.” Then again, “Push that a step further. A chink in the wall opened, but now a bit further. Just a bit more!”
As Nancy Pearcey reminds her readers, we are not in a “cultural war,” but in a “rescue mission.” Apologetics aims at understanding the position of the “other” in order to find their weaknesses and demonstrate them so their logic falls on itself. Pearcey is an excellent cultural dissector. Every chapter addresses a specific cultural concern, those that are on the forefront of every Christian’s mind. Love Thy Body tackles issues of abortion, euthanasia, the hook up, sexuality, transgenderism, homosexuality, marriage and parenthood.
Pearcey does a thorough job explaining the philosophical underpinnings of the dualist worldview splitting personhood and body supporting abortion that eventually evolves into the cultural disavowal of both gender and body. This dualist secular thought which prizes emotion over the body or biology I foundational to euthanasia, matters of sexuality, and the family. Pearcey defends the Christian scriptural worldview of the embodied soul created by God and redeemed, saved, and restored in Christ as the one that is truly freeing. She does this without using the Bible as a “battering ram.”
"The main reason to address moral issues is that they have become a barrier to even hearing the message of salvation. People are inundated with rhetoric that Bible is hateful, narrow and negative. While it is crucial to be clear about the biblical teaching of sin, the context must be an overall positive message: that Christianity alone gives the basis for a high view of the value and meaning of the body as a good gift from God. In our communication with people struggling with moral issues, we need to reach out with a life-giving, life-affirming message. We should work to draw people in by the beauty of the biblical vision of life."
There were times though, that I wanted stronger suggestions, “Get thee to a church!” But, again, this is apologetics. This is the wall-breaker. This is, “Oh, wow! Yeah! Now what do I do?” And in the hands of Christians, we should know what next to do.
Sometimes repetitive, but that’s a good thing for students and people like me with short attention spans.
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Reviewed in the United States on January 2, 2018
★★★★★ 5
Good coffee substitute
Size: 8 Ounce (Pack of 1)
I like this product for a coffee substitute ~ it taste good too
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Fresh, great product from a good company
Size: 16 Ounce (Pack of 1)
I take this product to help clean out my internal organs. That's the honest truth. Especially for getting rid of and preventing a fatty liver.
As a diuretic, the dandelion root definitely helps in the process of detoxification as well.
I bought several other products from this company, and all of them have shined exceptionally well! Specifically when it comes to the dandelion root tea powder, I noticed that it has a freshness to it. Other products from other companies feel inferior.
When I first opened up the package I could tell that it looked like 100% pure dandelion root. It's got a light color, it looks fresh, and also smelled fresh. I can't really say specifically how this product tastes on its own, since I usually mix it in with my morning energy smoothie which includes other detoxifying elements like lemon, matcha and Assam tea, and a few other things.
I'll see this much though, their marketing is great, their packaging is great, the products are definitely Superior to other products I've tried from other companies. I would go as far as to say that the dandelion root powder is definitely helping to detox my body, and I would definitely continue to buy it again.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
Good quality tea with distinct and flavorful taste!
Size: 16 Ounce (Pack of 1)
This tea has a distinct taste that is smooth, yet flavorful. It is my first time trying this brand, but I would definitely order again. I appreciate the organic content and nutritional benefits and cleansing attributes of this product. It does have a relaxing quality and the aroma is pleasing. I thought this came in tea bag form, but it is actually a powder which disolves in hot water. I would recommend this tea to others.
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Reviewed in the United States on August 26, 2025
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