Brushed Dome 6mm Tungsten Ring

Mr Undercover

$239.00

(9 Reviews)
  • *Size

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For the man who moves in silence but leaves an impact. Mr Undercover is all about low-key power, effortless style, and unshakable confidence. No flash, no fuss—just a matte brushed tungsten band that plays it cool while being tough as nails. With a 6mm dome design, this ring is built for all-day comfort, while the brushed finish keeps it sleek, stealthy, and impossible to overlook. Whether you’re making deals, hitting the gym, or just living life on your terms, Mr Undercover has your back.

The best bits in a nutshell:

  • 6mm Tungsten Band – Feels solid, strong, and built to last.
  • Brushed Matte Finish – Keeps things understated but sharp.
  • Dome Comfort Fit – Sits smooth on your finger, no bulk, no drama.
  • Virtually Indestructible – Scratch-resistant, wear-proof, and made for the long haul.

Wearing Mr Undercover means owning the room without saying a word—because true strength doesn’t need to shout.

Select Mr Undercover If:
✔ You prefer stealth over shine—power in the details.
✔ A matte finish suits your effortless, no-BS style.
✔ You want a ring that’s as durable as your mindset.
✔ You believe in staying sharp, focused, and always ahead of the game.

Sadly, we are unable to carry all sizes in all rings :(

We do however have a range of custom rings (including titanium rings) that can be produced in any size. Additionally, did you know that your finger can change by over half a size in one day due to temperature changes? It’s very possible that a slightly larger or smaller size will fit just fine, and of course you can exchange it if it doesn’t!

While we do have a size chart that you can find by clicking here, we highly recommend getting our *free ring sizer, as this is far more accurate than trying to measure your finger in mm and trying to figure out the size that way.

If you need a ring urgently, we highly recommend ordering an in-stock ring which includes a free ring sizer as well, so that if you guessed wrong, you can easily find your correct size with the included ring sizer, then use your free exchange to get the correct size.

No problem! For all orders over $100 we include a free ring sizer which will make sure that you can measure up correctly and freely exchange your ring for the correct size. If you aren’t in a rush, simply click the “Free Ring Sizer” button in the main menu and then you can measure up before ordering your ring. Easy!

More Details About This Tungsten Ring

What Is Tungsten Carbide?

Tungsten is one of the hardest materials on earth (second only to diamonds). On its own tungsten is virtually scratchproof, which makes it an excellent choice for a ring (although the coating on plated tungsten rings can still scratch), but it can be brittle, which is why we combine it with carbon to get a metal that is virtually scratchproof, yet much stronger than tungsten on its own.

You can learn more about tungsten in our ultimate tungsten guide, and can compare the different alternatives in our guide to choosing the best metal for a mens ring.

What Is Comfort Fit?

Comfort Fit Ring

This is a comfort fit ring, which means that instead of a flat inner band, we designed this ring to have a curved inner band (as you can see in the diagram above). This means that the ring is much easier to take on and off, and is also more comfortable for every day wear.

ring packaging

Stunning Packaging

We include amazing presentation packaging with this ring*, which can be upgraded even further with a premium wooden ring box.

*clearance rings under $99 may come in different packaging.

Free Ring Sizer

We include a free ring sizer with every ring over $50, so that if you do order the wrong size ring, you can return it, use the sizer, and exchange for the correct size. Brilliant!

Ring Sizer
Lifetime Warranty

Our lifetime structural warranty on all tungsten rings means that you don’t need to worry if something happens to the ring during normal wear and tear!

Express Shipping

Need it fast? We include free express shipping on all rings above $60, and we ship every day. So your new ring will see you soon!

customer-support

Worried about customer support? Don’t be! Our team is here for you both before and after the sale to ensure you get the ring you really want.

easy-exchanges

Wrong size? No problem! Simply contact our customer support team and they will guide you through our easy exchange process.

Customer Reviews

Terry
Rating: 5/5
Absolutely perfect
After doing much research on ring as I’m not a jewellery person I decided to go this one received it today and it’s exactly what I was after and perfect fit and everything was better then the photo thank you so much and super fast delivery
Wed Mar 26 2025 04:45:32 GMT+0000 (Coordinated Universal Time)
Sonia K.
Rating: 5/5
Replacement ring
Amazing customer service.
Sat Feb 04 2023 17:00:00 GMT+0000 (Coordinated Universal Time)
Daniel H.
Rating: 5/5
Great fit and comfort
Great fit and comfort
Sun Apr 24 2022 17:00:00 GMT+0000 (Coordinated Universal Time)
Nathan C.
Rating: 4/5
Easy
So easy to order, return/exhange. Thanks,
Thu Mar 05 2020 17:00:00 GMT+0000 (Coordinated Universal Time)
Scott M.
Rating: 5/5
Fantastic
Really great ring but above all else brilliant service. This was exchange for a previous one and the process to do so and time to switch rings was effortlessly quick.
Tue Feb 18 2020 17:00:00 GMT+0000 (Coordinated Universal Time)
Jade B.
Rating: 5/5
Great quality and super fast!
Great quality and super fast!
Sat Nov 02 2019 17:00:00 GMT+0000 (Coordinated Universal Time)
Irene P.
Rating: 5/5
Top quality product and fast
Top quality product and fast shipping
Mon Jun 11 2018 17:00:00 GMT+0000 (Coordinated Universal Time)
Brad D.
Rating: 5/5
Men’s brushed tungsten ring
Beautiful ring, I ordered the wrong size first time but it was very easy to exchange and Men’s Rings Online are very helpful and reply to your emails very quickly. 10/10 customer service.
Thu Apr 26 2018 17:00:00 GMT+0000 (Coordinated Universal Time)
Jack D.
Rating: 5/5
Great Service
I ordered my first ring and when it arrived within just a few days, i realized it did not suit me. I sent the ring back and within a few days my new ring was sent, which will now be my wedding ring. The communication, speed of delivery/refund and the ring itself were fantastic. Super easy and stress free.
Sat Nov 11 2017 17:00:00 GMT+0000 (Coordinated Universal Time)

Love the idea of a tungsten ring but not sold on this design? Click here to browse our full range of tungsten rings. Want something a bit lighter? Click here to browse our titanium rings.

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Not Sure Of The Size You Need?

We totally get it. It’s our customers’ #1 concern, but we have 15+ years of helping you to solve this problem. The single best way to get an accurate size is to order our completely free ring sizer here.

Alternatively, we have compiled the most comprehensive suite of sizing options and tools on the internet which you can find here.

Don’t forget though, if you receive the ring and it is the wrong size, contact us and we can help!

Want a Free Ring?

Any gold or platinum ring over $750 qualifies for a free titanium or tungsten ring of your choice. Simply add any in-stock (not custom) titanium or tungsten ring to your cart with your chosen gold or platinum ring, and enter the code: sidekick750 to get it for free!

Want a Free Silicone Ring?

Any titanium or tungsten ring over $200 qualifies for a free silicone ring of your choice. Simply add any silicone ring to your cart with your chosen titanium or tungsten ring, and enter the code: sidekick200 to get it for free!

Want a Free Silicone Ring?

Simply add any three silicone rings to your cart, and one will automatically become free during checkout. Easy!

Where Is Our Gold From?

Like diamonds, the gold that is used around the world can often be from conflict areas, and also areas where the working conditions for the miners are extremely poor. This is why we only use 100% Australian sustainable gold in this ring. You can rest assured that your solid gold ring from MRO is guilt free and made to perfection!

Custom Made Just For You

Our gold and platinum mens rings are custom made to order right here in Australia. Because of this, it can take 2-4 weeks before the ring is complete and ready for delivery. You can rest assured that we will ship it to you as soon as we possibly can!

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