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Ani Matagi Fukuro Nagasa Knife: Akita Hand-Forged Hunting Blade [2026]

Akita 13 min read
Ani Matagi Fukuro Nagasa Knife: Akita Hand-Forged Hunting Blade [2026]
📢 PR: This article contains Amazon affiliate links (US primary, Japan secondary) (details).

Deep in the mountains of northern Akita, in the former Ani district now folded into the city of Kitaakita, lives one of Japan’s oldest surviving hunting cultures: the matagi (マタギ), winter bear-and-game hunters whose practices run back centuries. Their signature tool is not a rifle but a blade — the Fukuro Nagasa (袋ナガサ), a single-bevel carbon-steel knife with a hollow socket handle that lashes onto a wooden shaft to become a bear spear, then unmounts to serve as an all-purpose field knife. The piece covered in this guide is hand-forged by Nishine Uchihamono (西根打刃物), the Ani forge most closely associated with the form.

What makes the Fukuro Nagasa notable internationally is not exotic mystique but engineering economy: one hollow-tang blade that is, by design, two tools. A mountain hunter carries less, and the socket geometry — fukuro meaning “bag” or “pouch,” here a hollow tube — is the whole point. It is a working object from a working tradition, still made by hand in the district where the matagi tracked bear across the Shirakami-Sanchi beech forests.

This article is written for buyers weighing a genuine Japanese hand-forged hunting blade — bushcrafters, collectors of regional cutlery, and outdoor cooks who want carbon steel over stainless. We cover what the published listing states, what it does well, where it falls short, how an international reader can actually buy it, and how it compares to other hand-forged Japanese blades on our site. A note up front: the data available for this specific listing was thin at the time of writing — only the Amazon JP Global Store reference (ASIN B0DXDWDMPT) was on hand, and live pricing was unavailable. Where a number could not be confirmed, the table says so rather than guessing.

📅 Published:
🔄 Updated:
⏱️ Read time: ~11 min

Nishine Uchihamono Ani Matagi Fukuro Nagasa hand-forged hunting knife with hollow socket handle
The Ani Matagi Fukuro Nagasa: a single-bevel carbon-steel blade with a hollow socket handle. Per the Amazon JP listing (ASIN B0DXDWDMPT) as of June 7, 2026.

Who this is for — and who should skip it

✅ A good fit if you…
  • Want a genuine hand-forged Japanese hunting blade from its source district, not a factory reproduction
  • Prefer carbon steel and accept the maintenance it demands
  • Bushcraft, hunt, or do serious outdoor work and value a knife that doubles as a spear-mount
  • Collect regional Japanese cutlery and want the matagi tradition represented
  • Are comfortable buying from Japan and waiting for international shipping
❌ Skip it if you…
  • Want a dishwasher-safe, rust-proof stainless knife you can ignore
  • Need a kitchen knife — this is a single-bevel field blade, not a santoku or gyuto
  • Expect Prime-style next-day delivery and a fixed USD price
  • Are uncomfortable maintaining and stropping a carbon edge
  • Live somewhere that restricts importing fixed-blade hunting knives (verify your local law first)

Product overview (from published specs)

The table below draws on the Amazon JP Global Store listing reference and the maker’s known specifications. Because the fetched dataset for this listing was sparse, several fields are marked unconfirmed rather than filled with assumptions. Spec sheets indicate the following.

Attribute Detail (per listing / maker)
Item Ani Matagi Fukuro Nagasa hunting knife
Maker Nishine Uchihamono (西根打刃物), Ani, Kitaakita, Akita
Steel White steel (shirogami, 白紙) carbon steel
Edge geometry Single bevel (kataba, 片刃)
Blade length ≈ 7 sun (about 21 cm) — verify on the live listing
Handle / tang Hollow socket (fukuro) tang; lashes onto a wooden shaft to form a spear (tate)
Origin Akita Prefecture, Tōhoku, Japan
ASIN B0DXDWDMPT
Weight Unconfirmed — check manufacturer / listing
Price Unavailable at time of writing — verify on the live listing

Sources: Amazon US search (primary, tag moonill-20) + Amazon JP Global Store (secondary, tag moonill-22, sourced listing) + maker-direct knowledge, with proxy services noted where relevant. Specs not present in the fetched data are marked unconfirmed.

📖 Glossary — key terms
  • matagi (マタギ) — traditional winter hunters of the northern Tōhoku mountains, hunting bear and game by foot through the snow; a culture, a vocabulary, and a code of practice, not merely a job.
  • Fukuro Nagasa (袋ナガサ) — “socket nagasa”; nagasa is the matagi word for their hunting knife, and fukuro (“bag/pouch”) refers to the hollow handle.
  • fukuro (袋) — the hollow socket tang. A wooden shaft slides in and is lashed tight, converting the knife into a spear.
  • tate (タテ / 立) — the spear configuration, used historically against bear at close range.
  • shirogami / white steel (白紙鋼) — a high-purity carbon steel prized for taking a very keen edge; rusts if neglected.
  • kataba (片刃) — single-bevel grind, sharpened on one side only, common in Japanese cutting tools.
  • sun (寸) — traditional unit of length, about 3.03 cm; a “7-sun” blade is roughly 21 cm.
  • uchihamono (打刃物) — “struck blades,” i.e., hand-forged edged tools.

Where this comes from — place, era, and the craft tradition

📍
Where this is made
Ani, Kitaakita (Akita Prefecture, Tōhoku)
Sea of Japan side of northern Honshu, about 450 km north of Tokyo; a mountainous interior district near the Shirakami-Sanchi beech forests and Mount Moriyoshi.

Akita Akita, Tōhoku

📍 Akita Prefecture, northern Tōhoku — about 450 km north of Tokyo on the Sea of Japan side; the Ani district lies deep in its mountainous interior near Shirakami-Sanchi and Mount Moriyoshi.

Akita sits on the Sea of Japan coast of the Tōhoku region, the northern third of Honshu. The Ani district — formerly the independent town of Ani-machi, merged into the city of Kitaakita in 2005 — is not on the coast but deep in the interior, a basin of steep forested ridges and long, heavy winters. That isolation is the whole story. The same snowbound geography that made farming hard made hunting essential, and it kept the matagi tradition intact into the modern era while it faded elsewhere.

Snow-laden trees on Mount Moriyoshi above the former Ani district in Akita
The iconic peak above the former Ani district where Nishine smiths still forge matagi blades; the deep winter snowpack set the rhythm of the hunting season. — Photo: Wikimedia Commons (CC BY-SA 4.0)

The matagi hunted bear and game on foot across these mountains — the beech forests of Shirakami-Sanchi to the northwest, the slopes of Mount Moriyoshi above Ani itself. Theirs was a subsistence culture with its own dialect, rituals, and rules about what could be taken and when. Bear was the central quarry, hunted in early spring as the animals left their dens, and the close-range nature of that work shaped the tool that became the matagi’s emblem.

The Shirakami-Sanchi virgin beech forest straddling Akita and Aomori
The UNESCO virgin beech forest straddling Akita and Aomori. The Ani matagi tracked bear and game across these northern mountains, and the Fukuro Nagasa was forged for exactly that life. — Photo: Wikimedia Commons (CC BY-SA 3.0)

“One hollow-tang blade, by design, is two tools: a field knife in the hand, and — lashed to a shaft — a bear spear in the snow.”

The Fukuro Nagasa answers a specific problem. A hunter moving through deep snow carries as little as possible, yet may need a spear’s reach against a bear and a knife’s precision for everything after. The hollow socket tang solves both: cut a shaft on the spot, slide it into the fukuro, lash it tight, and the knife becomes a spear; pull the shaft and it is a field knife again. The single bevel and white-steel carbon edge belong to the same logic — keen, field-sharpenable, repairable by a village smith.

📜 Timeline — the Ani matagi and their blade
  • Edo period (17th–19th c.) — Matagi hunting culture documented across northern Tōhoku; the Ani district becomes a recognized matagi heartland.
  • Meiji era (1868–1912) — Village blacksmiths supply farm, forest, and hunting blades to the mountain economy.
  • 20th century — Nishine Uchihamono (Nishine Noboru’s forge) becomes the maker most associated with the Fukuro Nagasa form.
  • 1993 — Shirakami-Sanchi, the matagi’s hunting grounds, inscribed as a UNESCO World Heritage site.
  • 2005 — Ani-machi merges into the newly formed city of Kitaakita.
  • 2026 — Nishine still hand-forges Fukuro Nagasa blades in Ani for hunters and outdoorsmen.
Lake Tazawa, Japan's deepest lake, in the mountainous interior of Akita
Japan’s deepest lake, emblem of Akita’s mountainous interior whose isolation helped preserve the matagi way of life into the modern era. — Photo: Wikimedia Commons (CC BY-SA 4.0)

The continuity here is concrete, not marketing. The same domain-era subsistence economy that kept Ani’s blacksmiths busy also sustained Akita’s other heritage crafts — the kabazaiku (樺細工) cherry-bark work of nearby Kakunodate and the magewappa (曲げわっぱ) bentwood of Ōdate. Where the kitchen-knife trade industrialized in places like Seki and Sakai, the matagi blade stayed close to its source: a small forge, single-bevel grinds, and a customer base that still walks into the mountains.

Preserved samurai-era streetscape in Kakunodate, Akita
Akita’s preserved samurai town. The same domain-era craft economy that kept its cherry-bark kabazaiku alive also kept village blacksmiths supplying farm, forest, and hunting blades. — Photo: Wikimedia Commons (CC BY-SA 4.0)

Which finish should you choose?

This piece is listed in 6 finishes. The photos below are the actual 色 options on the listing right now — pick the one you want and confirm it on the product page before ordering, since hand-finished wares vary slightly piece to piece.

📌 How does it compare?

Price snapshot across stores

JPY is the authoritative price for the specific listed item; USD figures, where shown, are approximate at a ¥150/USD baseline. At the time of writing, a confirmed price for this listing was not available in the fetched data — verify on the live listing before purchasing.

Store Item / variant Price (JPY + USD est.) Notes
🇺🇸 Amazon.com (US) Browse Japanese hand-forged knives varies (USD) Best if you are shopping from the US — Prime shipping, USD pricing, no international customs. Amazon US carries hand-forged Japanese knives from various makers for comparing steel and geometry; the exact Nishine Fukuro Nagasa is sourced from Japan (next row).
🇯🇵 Amazon JP Global Store Nishine Ani Matagi Fukuro Nagasa (ASIN B0DXDWDMPT) Price unavailable at time of writing — verify on listing The sourced listing for the specific item. Ships internationally from Japan to most major destinations.
Maker direct Nishine Uchihamono, Ani — Small forge; direct ordering may be limited and Japanese-language only. Lead times can be long for hand-forged work.
Proxy services (Buyee / Tenso) Forwarding from JP shops Item price + forwarding fee Useful if a Japan-only shop lists it; adds a service fee and a second shipping leg. Confirm blade-export and your local import rules first.

Prices and availability fluctuate; USD figures are approximate and depend on the current exchange rate. Always confirm on the affiliate link before purchasing.

What it does well

🗡️ Two tools in one
The hollow socket tang lets the same blade serve as a field knife or, lashed to a shaft, a spear. The data suggests this is the form’s defining feature, not a gimmick.

🔥 Genuine hand-forging
Forged at a working Ani forge in the matagi heartland, not a stamped reproduction. Provenance is the core of the appeal.

✂️ Keen carbon edge
White-steel single-bevel construction takes and holds a very sharp edge, and is field-sharpenable on a simple stone.

🏔️ Designed for real use
The geometry comes from generations of mountain hunting, not a design brief. It is a working object first, a collectible second.

Weaknesses and things to verify before buying

  1. Carbon steel rusts. White steel demands wiping dry, light oiling, and prompt cleaning. It is not a fit for anyone who wants a maintenance-free stainless blade.
  2. Single bevel takes practice. A kataba grind tracks differently than a symmetric Western edge and is sharpened on one side; the learning curve is real.
  3. Not a kitchen knife. This is a field blade. If you want a santoku or gyuto, see the Echizen or Kaga guides linked above instead.
  4. Price and exact specs were unconfirmed in the data at the time of writing. Verify blade length, weight, and price on the live listing before ordering.
  5. Import legality varies. Some countries and regions restrict fixed-blade or “hunting” knives. Confirm your local law and customs rules before buying from Japan.
  6. Hand-forged supply is limited. A small forge means stock can be intermittent and lead times long; the exact piece may sell out or vary slightly between units.
  7. The spear function is a capability, not an invitation. Mounting it as a tate is a serious-use feature tied to a hunting tradition, with attendant safety and legal weight.

Conclusion — which buyer type are you?

🏆 The Premium buyer
You want the genuine, source-district hand-forged piece and accept carbon-steel care. The Nishine Fukuro Nagasa is squarely for you.

⚖️ The Mainstream buyer
You want a quality Japanese outdoor knife but may not need the spear-mount. Consider it, but also compare a simpler fixed blade or the Ainu makiri.

💰 The Budget buyer
Hand-forged work commands a premium. If price is the priority, a production stainless bushcraft knife serves better; this is not the value pick.

🚫 Skip it
You want a kitchen knife, a rust-free blade, or fast fixed-price delivery — or your region restricts importing hunting knives. This is not the right buy.

Other ways to approach this purchase

⏳ Wait for stock
Hand-forged blades sell intermittently rather than discount on a schedule. If the listing is out of stock, set an alert and wait for the forge’s next run.

♻️ Secondhand
Used matagi knives appear on Japanese resale platforms. A well-kept carbon blade can be re-sharpened, but inspect for rust pitting and a sound tang first.

🎁 Points & rewards
If you buy through Amazon JP Global Store, account points and card rewards can offset part of the cost. Compare the all-in total against proxy-forwarding routes.

🚫 Skip it
If the maintenance, the import rules, or the field-knife purpose do not match your needs, a stainless production knife is the honest alternative.

🏆 Editor’s Pick

🏆 Editor’s Pick — the matagi blade we would start with

For a genuine matagi hunting knife, the Nishine Uchihamono Ani Matagi Fukuro Nagasa (ASIN B0DXDWDMPT) is the reference piece: white-steel single bevel, a hollow socket handle that lashes onto a wooden shaft to form a bear spear, and a blade of roughly 7 sun. Based on the listing, three reasons it earns the pick:

  • It comes from Ani itself — the matagi heartland — and from the forge most associated with the form.
  • The hollow-tang spear-mount is the defining function, executed by a working hand-forging shop.
  • White-steel carbon takes a keen, field-sharpenable edge suited to real outdoor use.

Only the Amazon JP Global Store reference was available; live pricing was unavailable at time of writing — confirm the current price before buying.

❓ Frequently Asked Questions

What exactly is a Fukuro Nagasa knife?
It is the traditional hunting knife of the matagi, the winter hunters of northern Akita. Nagasa is their word for the knife; fukuro (“pouch”) refers to its hollow socket handle, which lets the blade be mounted on a wooden shaft and used as a spear.
Can it really be turned into a bear spear?
Yes — that is the design intent. The hollow tang accepts a wooden pole that is lashed in place, converting the knife into a spear (tate) for close-range hunting, then unmounted for use as a field knife. It is a serious-use feature tied to a hunting tradition.
What steel is it, and is it stainless?
It is white steel (shirogami), a high-purity carbon steel — not stainless. It takes a very keen, field-sharpenable edge but will rust if it is not wiped dry and lightly oiled.
Does it ship internationally?
The Amazon JP Global Store listing ships from Japan to most major destinations. If a Japan-only shop carries it instead, a proxy forwarder such as Buyee or Tenso can route it. Confirm that blades can be exported and imported under your local rules before ordering.
How do I care for a single-bevel carbon blade?
Clean and dry it promptly after use, apply a thin film of camellia or mineral oil for storage, and sharpen the single bevel on a whetstone. A stable patina is normal and helps resist further rust; active orange rust should be removed.
Who makes it?
Nishine Uchihamono (Nishine Noboru’s forge) in the Ani district of Kitaakita, Akita — the maker most closely associated with the Fukuro Nagasa form, hand-forging blades for hunters and outdoorsmen.

jpmono.com is curated by a Japan-based editorial team (working out of Toyama in the Hokuriku region and Nara in Kansai) and is independent. We do not take payment from the makers we feature; income comes from affiliate links. We do not physically test every product — we read maker specs and source listings.

📢 Affiliate Disclosure — This article contains affiliate links from the Amazon Associates Program. The primary path is Amazon US (amazon.com) via search — many of these hand-forged Japanese craft items are not individually listed on amazon.com, but Amazon US carries comparable Japanese kitchen and home goods, and commissions on whatever the visitor purchases through the search link go to support this site. The secondary path is Amazon JP Global Store (amazon.co.jp), which is where the specific items covered in this guide are sourced from and which ships internationally to most major destinations. If you make a purchase through either of these links, we may earn a commission at no extra cost to you. Prices and availability shown are based on data at the time of writing and may have changed — always verify at the retailer before purchasing. USD figures shown alongside JPY are approximate (¥150/USD baseline as of mid-2026); the JPY price is the authoritative one for the specific listed item.

Note: This article was prepared with AI assistance and reviewed against the available listing data. Specifications, pricing, and availability should be confirmed on the retailer’s page before purchase.

Affiliate disclosure: jpmono.com may earn a commission on qualifying purchases made through links on this page, at no additional cost to you.

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