Dojo Pro Katana Model #31 Musashi O-Katana

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MSRP: $350.00
Now: $305.00
Was: $350.00
— You save $45.00


Dojo-Pro Katana Model #31 O-Katana


With over 30 katana models for sale, Ronin's dojo pro line of samurai swords is the largest Japanese sword line in the world. Each unique tsuba is based on an actual antique Japanese katana. The pro line is extensively tested yearly, with testing videos published on you tube having received nearly 5 million views. Ronin has destroyed over $10,000 in swords to help educate the public in what our swords can, and can not do. Ronin strives to produce a safe and reliable workhorse sword that is welcome in dojos around the world. Ronin is a global brand with retailers based in the United States, Europe, and Japan.


Steel: Through hardened 1060
Saya: Hand cut and polished buffalo horn Kurikata, Koguchi and Kojiri.
Weight: 3.2 pounds
POB: 5 1/2- 6 inches
Length in saya: 47.5 inches
Tsuka: 12 inches
Blade: 33 inches
Habaki to tip: 32 inches
Ito: Black Silk
Sageo: Black & White Silk
Fuchi: Blackened iron
Kashira: Blackened iron
Menuki: Brass

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13 Reviews

  • 5


    Posted by Tony Walker on Nov 27th 2023

    This was my first purchase from Ronin Katana and Man, was I so happy that I purchased and received this sword. Love It!!!!! The size for me is perfect, the blade is beautiful and sharp, and I truly Love the Wrap on the Tsuka!!! It is tight and done with high quality Ito, that feels great in the hands!! I cannot wait for the Elite Katanas to come in, so that I can purchase one the same dimensions as this one!!! Way to Go Ronin katana!!!!!!

  • 5

    Musashi O-Katana - IMPRESSIVE

    Posted by Tony Walker on Jul 13th 2023

    I received this Musashi O-Katana for my birthday, and Impressed is all that I can say!!! It is exactly what I have been looking for - for so many years!! Perfect blade length, weight and handle length. The finishes are great quality and everything is tight with no movement to be found. The tsuka is the perfect diameter and it makes using this 33 inch blade effortless!!!!! The sword arrived very quickly and packaged wonderfully!!! I own several swords from other manufactures and 3 from a Master Bladesmith and this sword holds it own with any of them, and is better then most of them. Best Production sword that I have!!! And the price.......WOW on sale this was too good to be true!!!! Ronin Katana is absolutely my new source for any sword that I purchase in the future. I was Impressed with all aspects of this sword from the purchase to training with it!!! WAY TO GO RONIN KATANA!!!!!!!

  • 5

    O Katana

    Posted by Isaiah Rouse on Sep 20th 2022

    Overall I really loved the katana I received, it was noticeably longer without too much extra weight. My only suggestion would be for there to be a larger variety available for purchase

  • 5

    Musashi O-katana

    Posted by PG13 on May 12th 2022

    I know very little about katanas, this is my fist one. I won’t try to name all the specific parts and give an overview because all I can really remember is that the name for the top of the sheath translates to fish mouth, so let’s just move past that. At the same time, I am very familiar with edged weapons and their use, and I am very willing to pay top dollar for a quality product. This was not top dollar. It IS a top quality product. Very solid construction, very good materials and excellent presentation. After holding this sword, and after using it, I would have paid twice the price. It has excellent balance, perfect geometry, and has impressed the heck out of me. My European swords are jealous, my inner child is freaking out, and my bank account is terrified, because I’m definitely coming back. If you’re hesitant because you’re thinking something g priced like this can’t be as good as the product you’re hoping to get, you might as well stop. It is good. In fact, it’s better. Just remember, one probably isn’t going to be enough. Oh, and it has a really good fish mouth. Thanks for the sword!

  • 5

    Musashi o katana, very nice

    Posted by Unknown on Apr 25th 2022

    Excellent blade. Scary sharp.

  • 5

    recent katana purchase

    Posted by Samuel A Koppes on Dec 10th 2021

    Outstanding sword, great construction, cut well out of box, even more beautiful in person compared to photos.

  • 4

    Funtional wise very good sword for the price

    Posted by Lancelot Chan on Jul 13th 2021

    Aside from some small problem like light scratches on the saya, and the plastic bag getting stuck inside the saya, this sword came as a very functional cutting sword. Ito is tight, and blade is straight with the edge straight and pretty sharp as well. The tip is also sharp out of the box, which is a rare thing for lung chuan swords. Balanced at 7", this sword is pretty tip heavy and thick. At first I worried about the cutting smoothness due to the overly thick blade but it did good on all cuts except the most difficult direction. It cuts through denim fabric covered simulated thigh too with my honed edge sharpness. Overall, I enjoy cutting with this sword. I think it can be a bit more nimble and pleasing in the handling but for now it definitely did what it was designed for, as a "dotanuki" sword.

  • 5

    Dojo pro #31

    Posted by Lord Meta on Mar 25th 2021

    I recently just got this sword for $300 and it was definitely worth the money. My only problem is that the swords blade is a little bit longer than i thought it would be (33 in). But thats totally my fault for not looking at the specs of the sword. So if you are taller person or just want the reach advantage, this sword would be perfect for you. But other than that, im in love with it, and i actually want to buy another (Shorter) sword from ronin sometime soon, (especially after seeing the quality of this one) to compliment it.

  • 4

    minimalist and tough - katana if you want the reach advantage

    Posted by Alex B on Jan 23rd 2021

    The Dojo Pro Katana Model #31, like the #12 I also have, is a value-oriented mid-range product focused on being as functional as possible for the price. The blade is excellent in terms of quality, balance, sharpness, niku and very tough. The bo hi makes the blade noticeably lighter and has a satisfying tachi kaze - sound of the air being cut. Despite the significantly longer blade, its balance means it's weight in hand is comparable to a standard length modern katana that has no hi (i.e. one without bo hi). The koshirae are basic and plain, with limited decorative details, but not at all bad. It's comfortable to draw and hold. The ito wrap is very well done. Unlike the #12 I have, this #31's saya is imperfect, but it's not apparent until you try to draw. This saya came too tight for the habaki. I was not able to loosen it with just my thumb. In fact, I had to hold the saya in my left, the tsuka in my right and apply considerable force to separate them. Fortunately, fixing a tight saya is pretty simple, but it's the only reason this didn't get 5 stars from me, as this is now my favorite sword by far.

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