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Questions & Answers
is this a single action OTF or a Double Action OTF Expert Answer

The manufacturer says
Our Viper knives are assisted opening, not automatic, where you use your thumb to slide the blade open and closed.

Mark H.

by Mark H., Gear Expert, February 13, 2018
SIZE OF BLADE Expert Answer

Blade length is approximately 3.5" like it is listed on the Specifications.

by Armando R., Gear Expert, October 23, 2019
Customer Reviews
Helpful Positive Review
Great gift. by Bholder, January 4, 2021
My 17 year old son can’t put this knife down. He has opened and closed it thousands of times since he got it. I bought one for all three of my sons as a Christmas gift and They love them. I Love the fact there is a safety feature on the knife. It’s d...
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1/1 found this helpful
Helpful Positive Review
Schrade otf viper by Stinkfist, February 28, 2019
Good entry level automatic knife.the action of the otf is a little ackward in the beginning but you will get used to .safety is a little hard to open and close would recommended leaving it off if you have a need to deploy it in emergency situations.T...
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1/1 found this helpful
Helpful Positive Review
I am always happy to receive my packages from opticsplanet they come fast the quality of the merchandise his outstanding. I highly recommend using them for your orders on whatever you need. The quality is always good.
2/2 found this helpful
Helpful Positive Review
Schrade out the front and Viper gen 3 by Isnala Omani, December 29, 2019
It's a joy, fun tool to add to my box, it's a good entry level OTF, I enjoyed it quite a bit I think I will purchase a couple more as some gifts, would recommend anyone looking for their first out the front.
2/2 found this helpful
Helpful Negative Review
Not Well designed as a Rescue Knife by John Briery, Verified Owner, February 12, 2025
I have always considered Scharade to be a quality company, but they really missed the mark with this one. I rated it one star for several reasons. The placement of the thumb activator button on the rear portion of the knife, when closed, makes openi...
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1/1 found this helpful
Most Recent Reviews
Microtech loophole by Joe Bazan, October 16, 2025
I would rather get this than a Microtech. Real Aluminum handle. Bade comes out fast. Easy to master the functions. Zero blade play. 3.5 inch blade is great size.
Read All 10 Reviews

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Purchase Restrictions Purchase Restrictions

This item may be purchased by Illinois residents 21 years and over with a valid FOID and Illinois Identification card which we require submission of at checkout. For those outside of Illinois, this item is regulated for sale to Military, Law Enforcement, or other qualified personnel. Our team will contact you regarding the required qualifications and documentation. Certain federal, state, and/or local laws and regulations may apply.

Product Info for Schrade Viper 3rd Generation 3.5in Automatic Folding Knives

The ultimate self-defense knife needs to be concealable, easy to access, and lethal - all characteristics of the Schrade Viper 3rd Generation Out The Front. These Automatic Folding Knives by Schrade have a simple deploy mechanism that activates the blade by pushing on a slider near the base of the handle. Operating with an assisted automatic deployment and manual retraction, the Schrade Viper OTF Knife is easy to operate, allowing you to deploy the blade quickly when you need it most. This is the ultimate value for an everyday knife that can operate as a self-defense weapon or package opening tool in a pinch. The blade is crafted out of 4034 Stainless Steel with a lightweight aluminum handle so it won't weigh you down. Pick up the Schrade Viper OTF Retractable Knife today and feel safe and secure knowing that you have a handy, stealthy device that will protect you in any emergency situation.image

WARNING: California`s Proposition 65

Specifications for Schrade Viper 3rd Generation 3.5in Automatic Folding Knives:

Manufacturer: Schrade
Blade Length: 3.5 in
Blade Material: 4034
Handle Color: Black
Knife Application: Folding Blade
Included Accessories: Pocket Clip
Condition: New
Weight: 4.9 oz
Closed Length: 5.25 in

Features of Schrade Viper 3rd Generation Out The Front

  • 4034 Stainless Steel

Package Contents:

  • Schrade Viper 3rd Generation Out The Front

Schrade Viper 3rd Generation 3.5in Automatic Folding Knives Orderable Models

List of Orderable Models

  • Schrade Viper 3rd Generation Automatic Folding Knife, 3.5in, 4034 Steel, Plain Blade, Black Finish, Black Titanium Nitride Handle, SCHOTF3B , MPN: SCHOTF3B , UPC: 044356214001 , Code: SRD-KN3-TAYL-SCHOTF3-SCHOTF3B
  • Schrade Viper 3rd Generation Automatic Folding Knife, 3.5in, 4034 Steel, Partially Serrated Blade, Bead Blast Handle, - SCHOTF3S , MPN: SCHOTF3S , UPC: 044356214599 , Code: SRD-KN3-TAYL-SCHOTF3-SCHOTF3S
  • Schrade Viper 3rd Generation Automatic Folding Knife, 3.5in, 4034 Steel, Plain Blade, Black Titanium Nitride, SCHOTF3BS , MPN: SCHOTF3BS , UPC: 044356214605 , Code: SRD-KN3-TAYL-SCHOTF3-SCHOTF3BS

Schrade Viper 3rd Generation 3.5in Automatic Folding Knives Unavailable & Discontinued Models

List of Unorderable Models

  • Schrade Viper 3rd Generation Out The Front, SCHOTF3 , MPN: SCHOTF3 , UPC: 044356213998 , Code: SRD-KN3-TAYL-SCHOTF3
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