GSO-5.1

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GSO-5.1

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$299.00
(10 Reviews) Leave a Review

With the latest design revision we've taken the already outstanding SURVIVE! GSO-5.1 and made it even better. While the blade profile has remained the same, we've lengthened and recontoured the handle a bit to improve comfort and usability over a wider range of users.

The SURVIVE! GSO-5.1, a full sized medium utility knife, is one of the most versatile cutting tools in the SURVIVE! line up. The robust, well balanced design of this tool allows you to tackle a wide variety of tasks with relative ease. The very manageable size and weight of the GSO-5.1 is solid and confident in your hand, without being heavy or feeling bulky.

Our high quality Torx T-25 style fasteners are precision machined from 17-4PH stainless steel.  Key features of the kydex sheaths include: excellent retention, drain channels, and several attachment options with slots and eyelets, in addition to the kydex clip.  The satin stonewash finish on the blade provides extra durability while maintaining a sharp enough spine for use with most ferro rods.  We utilize the experts at Peters' Heat Treating to provide the most up to date heat treat for all of our blades.

Production and Delivery Information:

There are GSO-5.1 blades at all stages of production right now. As one of our most popular models we plan to have a run of GSO-5.1s in production at all times. Preorders placed now are on the schedule to be delivered within a few months. We do our best to deliver knives within 90 days, though that may change depending on delivery timelines for steel and handle materials and shipping to and from heat treating.

For the most up to date information check our Production Schedule page. 

A bit about the steel used in SURVIVE! Knives:

CPM-3V is a high alloyed tool steel, made using the Crucible Particle Metallurgy process, that has a very high impact toughness and excellent edge holding. Being made with the CPM process, this steel is also very resistant to lateral stress (flex) breakage, making it a perfect choice for a high performance, hard use knife. CPM-3V is not a stainless alloy and can stain if not cared for. Visit our knife care page for the best  Check out the CPM-3V Data Sheet.

CPM MagnaCut is an innovative new stainless steel from Crucible. It has an excellent combination of toughness and wear resistance, along with improved corrosion resistance. Our CPM MagnaCut blades are expertly heat treated to 62.5 HRC. Here is the CPM MagnaCut Data Sheet.

SURVIVE! proudly supports Peters' Heat Treating for all of our heat treating needs.

Disclaimer:
- We do not have a set delivery date for preordered knives, be sure to sign up for our newsletter to receive regular production updates.

Steel *
Handles (see video below for details) *
Sheath *
Very Important: *
Stock:
Blade Material
CPM-3V or CPM Magnacut
Blade Length
5.8" (tip to front of handle)
Blade Height
1.50"
Blade Thickness
.190"
Overall Length
11.4"
Weight
12.7 oz (knife only), 15.7 oz (w/ sheath)

Reviews

5 based on 10 reviews.
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5.1s survive!
Written by Lee DeFoe Jr. on Aug 15th 2019

Really am a fan of Survive! I own more than a couple blades, and I swear by them. The 2nd gen 5.1 is what I own and I'm sad I missed out on the pre order for the new ones, but still I couldn't be happier with the one I own. If you get your hand on one, you wont be disappointed. The best.

AMAZING SERVICE AND BLADE
Written by T. H. on May 8th 2016

I saw this blade during a survival course in the Sierra Nevada's. I was hooked. Ordered 4 for my wedding as gifts with the leather sheaths. All 4 of us use these everyday either in the field or in the line of duty. No rust, no flaws, strong blades and amazing craftsman ship. Guy went the distance and because these were custom for a special gift Guy sent video of the process. It was a long wait. I'm placing an order for the next run along with friends who want another one. First class service, first class blade. Thanks Guy, and Semper Fi, to you and Ellie.

Worth every penny.
Written by Greg on May 5th 2016

I ordered a factory 2nd GSO 5.1 on 04/11/16 and it arrived 05/04/16. It is worth the wait. I cant find any flaws on the knife, I'm not sure why it is a factory 2nd. The knife sharp. I barely touched the blade to my arm and the hair shaved right off. I watched a number of You Tube videos researching a good camp knife I don't recall any of the reviewers saying anything bad about the Survive Knives. I am very impressed with this knife and the care that has been put into producing it.

Near perfection
Written by Ricky D on Apr 21st 2016

The best and most balanced knife I have ever owned. Flawless.

Great Field Knife
Written by Matt on Apr 15th 2016

After using the GSO 5.1 in 20CV steel for the last few months, I can confidently say that it is the best field knife I've ever used. The toughness of the 20CV blade surprised me, I have yet to chip or roll the edge after using the knife for everything from processing firewood to carving a turkey. The edge is incredible, it cuts extremely well which isn't common on a knife of this size. Very (VERY!) few knives combine this level of toughness AND cutting ability. The handle is very well designed, comfortable for heavy duty chores like splitting firewood as well as lighter work like carving wood or meat. The choil works great for making the big knife feel smaller for tasks requiring more control. Thanks for such a great tool Survive!

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