Mantis 816 AUTO OTF Knife 3.25" 440C Satin Combo Double Edge Dagger Blade, OD Green Milled Aluminum Handles

Special Price* :

$74.95

Our Price* : $134.25
MSRP* : $184.95 | You Save* : $110.00 (59%)
Part #: MNTOTF816 | Mantis Knives
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Description

MNTOTF816: 816 AUTO OTF Knife - Satin Combo Dagger/OD Green Aluminum

Mantis Knives

The Mantis 816 AUTO OTF Knife features a 3.25" blade made of durable 440C stainless steel, offering excellent edge retention and corrosion resistance. The milled aluminum handles provide a lightweight yet robust frame, ensuring both style and performance. As an OTF (out-the-front) automatic knife, it operates smoothly with a reliable slide-activated deployment, making it ideal for everyday carry. Mantis Knives is known for its commitment to quality, using premium materials such as aircraft-grade aluminum and titanium alloys to craft knives that are both functional and long-lasting. Combining precision engineering with innovative design, the Mantis 816 is built for users who value reliability and style in their tools. This model features a satin double-edged combo dagger blade with milled OD green aluminum handles and a reversible deep carry pocket clip.

Specifications

  • Blade Length: 3.25"
  • Cutting Edge: 3.125"
  • Closed Length: 4.50"
  • Overall Length: 7.75"
  • Blade Material: 440C Stainless Steel
  • Blade Thickness: 0.110"
  • Blade Style: Double-Edged Combo Dagger
  • Blade Grind: Hollow
  • Blade Finish: Satin
  • Handle Material: OD Green Milled Aluminum
  • Locking Mechanism: Slide Lock
  • Pocket Clip: (Tip-Up, Right/Left Carry)
  • Weight: 3.46 oz.
  • Made in the USA

UPC Code: 149780018260

Related Categories

Mantis Knives, 440C Blade Steel, Aluminum Handle Material, Folding Knives, Folding Knives Auto, Made in USA

Product Steel Type Badge: 440C Stainless Steel
Product Clip Type Badge: Pocket Clip
Product Handle Badge: Aluminum Handles
Product Country of Origin Badge: Made in USA
Mantis 816 AUTO OTF Knife 3.25" 440C Satin Combo Double Edge Dagger Blade, OD Green Milled Aluminum Handlesrated 4.667 stars out of 5 (3 reviews)
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Mantis 816 AUTO OTF Knife 3.25" 440C Satin Combo Double Edge Dagger Blade, OD Green Milled Aluminum Handles
rated 5 stars out of 5
Matthew
NC
Aug 05, 2026
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Sheath, Weight
Cons: None
Outstanding
I just got it in the mail with a very fast shipping response. I expected quality that of an $80 dollar OTF but was presented with quality of a higher end product. To say the quality is on point is an understatement. Great job and you can expect more purchases from me.
Mantis 816 AUTO OTF Knife 3.25" 440C Satin Combo Double Edge Dagger Blade, OD Green Milled Aluminum Handles
rated 4 stars out of 5
Dr Jones
Spartanburg
Jun 22, 2026
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip, Weight
Cons: None
What you need!
I have wanted an OTF for years but jumping in at 250 or more will never happen for me. This was priced very well and so far it is more useful / fun than I imagined. I use it for EDC and especially when you want someone to notice your EDC.
Mantis 816 AUTO OTF Knife 3.25" 440C Satin Combo Double Edge Dagger Blade, OD Green Milled Aluminum Handles
rated 5 stars out of 5
Griggs187
Malad City, Id
Dec 03, 2025
Pros: Blade Material, Blade Sharpness, Ease of Opening, Handle Feel, Handle Material, Lock Ease of Use, Lock Type, Overall Quality, Pocket Clip
Cons: Sheath, Weight
Good quality knife
Great knife. Good build quality. I ordered the wrong knife (serrated) so sent back and purchased regular delivery side. Recommend this knife.