Benchmade 2551S Mini Reflex II – 3.17″ Satin 154CM Combo Edge Drop Point, Black Aluminum, Push-Button Automatic
Benchmade 2551S Mini Reflex II – 3.17″ Satin 154CM Combo Edge Drop Point, Black Aluminum, Push-Button Automatic
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Benchmade 2551S Mini Reflex II Automatic Knife
The Benchmade 2551S Mini Reflex II is the combo-edge version of Benchmade's compact side-opening automatic. The 3.17" 154CM drop point wears a satin finish and carries serrations along the rear portion of the edge, which is the configuration most people want for cutting rope, webbing, seatbelt material, and other fibrous things that a plain edge tends to slip on.
Everything else matches the rest of the Mini Reflex II family: machined black anodized 6061-T6 aluminum handle, push-button firing with an integrated safety on the spine, tip-up pocket clip, and a light 2.58 oz carry weight. Closed, the Benchmade 2551S Mini Reflex II measures 4.17".
Specifications – Benchmade 2551S Mini Reflex II
- Blade length: 3.17" (8.05 cm)
- Blade steel: 154CM stainless, 58-61 HRC
- Blade style: drop point, satin finish, combo (partially serrated) edge
- Blade thickness: 0.097"
- Handle: black anodized machined 6061-T6 aluminum
- Mechanism: push-button automatic with integrated safety
- Closed length: 4.17" | Open length: 7.35"
- Weight: 2.58 oz
- Carry: tip-up pocket clip
- Made in the USA
Frequently Asked Questions
What is an automatic knife?
An automatic knife deploys its blade under spring tension when you press a button. The Benchmade 2551S Mini Reflex II is a side-opening automatic, so the blade swings out from the side of the handle and locks open with one press.
Why choose the combo edge on the Benchmade 2551S Mini Reflex II?
The serrated section bites into rope, cordage, webbing, and straps that a plain edge can slide across, while the forward plain section still handles clean slicing. The combo edge on the Benchmade 2551S Mini Reflex II is a common pick for rescue, marine, and utility use.
How does the safety on the Benchmade 2551S Mini Reflex II work?
An integrated safety sits on the spine next to the firing button. Engaging it blocks the button so the Benchmade 2551S Mini Reflex II will not fire unintentionally in a pocket or bag.
Is the Benchmade 2551S Mini Reflex II legal to carry?
Automatic knife laws vary by state and city. Check your local and state regulations before buying or carrying the Benchmade 2551S Mini Reflex II, since some jurisdictions restrict automatic knives to law enforcement and military personnel.
Does the Benchmade 2551S Mini Reflex II come with free sharpening?
Yes. Benchmade's LifeSharp service will sharpen and tune the Benchmade 2551S Mini Reflex II for the life of the knife, serrations included.
Where is the Benchmade 2551S Mini Reflex II made?
In Oregon City, Oregon, at Benchmade's USA manufacturing facility.
Where can I buy the Benchmade 2551S Mini Reflex II?
Going Gear is an authorized Benchmade dealer, so every Benchmade 2551S Mini Reflex II we ship is genuine and covered by the full Benchmade warranty and LifeSharp service.

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