Benchmade Morpho 51 – 4.25″ Satin D2 Modified Spear Point Balisong, Black G10, Butterfly Knife
Benchmade Morpho 51 – 4.25″ Satin D2 Modified Spear Point Balisong, Black G10, Butterfly Knife
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The Benchmade Morpho 51 is a lightweight balisong, or butterfly knife, built for smooth flipping and everyday carry. It features a 4.25" satin-finish D2 tool steel crowned modified spear-point blade, machined and skeletonized black G10 handle scales over blue-anodized titanium liners, a spring-latch, and a blue-anodized titanium pocket clip. This listing is for the discontinued Benchmade Morpho 51.
Benchmade Morpho 51 specifications
- Blade length: 4.25"
- Blade steel: D2 tool steel, 60-62 HRC
- Blade style: crowned modified spear-point, satin finish
- Blade thickness: 0.100"
- Handle: skeletonized black G10 over blue-anodized 6AL-4V titanium liners
- Lock: balisong spring-latch
- Pocket clip: tip-up, blue-anodized titanium
- Overall length: 9.35"
- Closed length: 5.10"
- Weight: 3.30 oz
- Made in the USA (Oregon City, Oregon)
Frequently asked questions
What is a butterfly knife (balisong)?
A butterfly knife, or balisong, is a folding knife with two counter-rotating handles that swing around the tang to conceal or expose the blade. The Benchmade Morpho 51 is a balisong with a spring-latch that secures the handles closed or open.
How do you open the Benchmade Morpho 51 butterfly knife?
Release the latch, then rotate the two handles apart around the pivots until the blade is exposed and the handles meet behind the edge. Flipping technique takes practice, and beginners often start with a trainer before using a live blade like the Benchmade Morpho 51.
Is the Benchmade Morpho 51 butterfly knife legal?
Balisong and butterfly knife laws vary widely by state, country, and city. Some places restrict ownership or carry. Check your local laws before buying or carrying the Benchmade Morpho 51.
Does the Benchmade Morpho 51 come with LifeSharp service?
Yes. The Benchmade Morpho 51 is covered by Benchmade LifeSharp, the lifetime service that cleans, adjusts, and re-sharpens the knife to a factory edge.
Where is the Benchmade Morpho 51 made?
The Benchmade Morpho 51 is made in the USA at Benchmade's factory in Oregon City, Oregon.
Where can I buy the Benchmade Morpho 51?
You can buy the Benchmade Morpho 51 from Going Gear, an authorized Benchmade dealer. This model has been discontinued by Benchmade, so availability is limited to remaining stock.

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