GSO-5.1 (Starting Production Soon)

Steel *
Handles *
Fasteners (T-25 Torx) *
Sheath *
Current stock: 0


The GSO-5.1 is waiting to start production.  Please keep an eye on the SURVIVE! production schedule for estimated completion dates for each knife model.

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 416 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 peened finish on the blade provides extra durability and is non-reflective.  The spine is sharp enough 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.

- You are not required to purchase a kydex sheath with your order but it is HIGHLY recommended that you do so.
- Preorders do not have a guaranteed delivery date.

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.  Check out the CPM-3V Data Sheet.

CPM-20CV is a very high quality martensitic stainless steel, with outstanding corrosion resistance and excellent edge holding. CPM-20CV does lack the impact toughness of CPM-3V but being made with the CPM process, this steel is still very resistant to lateral stress (flex) breakage. Consider CPM-20CV for a very low maintenance, all weather cutting tool.  Here is the CPM-20CV Data Sheet.


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


Reviews (9)

T. H. 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.

Greg May 5th 2016

Worth every penny.

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.

Additional Info

Additional Info

Keep an eye on our Production Schedule to know when the GSO-5.1 will be available.
Blade Material:
CPM-3V or CPM-20CV
Blade Length:
5.75" (tip to front of handle), 5.10" (tip to finger choil)
Blade Cutting Length:
Blade Height:
Blade Thickness:
Overall Length:
11.1 oz (knife only), 15 oz (w/ sheath)