chiral.grolim
Universal Kydex Sheath Extension
- Joined
- Dec 2, 2008
- Messages
- 6,422
2016 Edition - Survive! Knives GSO-5.1
Guy Seiferd's Survive! Knives has moved to Idaho where production continues, as do the growing pains. Survive! Knives is a "craft mid-tech" production company - Guy designs the knives to his specifications, orders the materials, has the materials processed to his specifications, gets the blades and handles and screws and sheaths sent back to him, then sharpens each blade (usually himself) and builds them with his team (currently 3 people including Guy) according to customer orders before shipping them out. On top of production, they try (really just one person) to manage customer service via e-mails, phone calls, internet posts on bladeforums and instagram and facebook and wherever else they have a presence... Yeesh!
Survive! Knives is a very small operation with various aspects of production out-sourced to professional groups here in the USA. As with any company, production delays happen. Something Guy has continually been criticized for is his optimistic estimations of delivery dates. He tried to do away with this problem by stopping his original business model of "pre-order" kick-start campaigns, but fans continued to demand that he take their money
Wellllll in exchange for a discount on their order, fans can invest their money with Survive! Knives and then sit back and wait... and wait... patience required!!! I don't know how many of the e-mails and phone-calls fielded by the S!K customer-service representative are simply questions on delivery estimates or requests for refunds because it is taking too long, but it must be substantial.
Survive! does put out a monthly newsletter with production updates (http://surviveknives.com/production-schedule/) which is better than the quarterly reports on my 401k
But again, patience required.
And with patience comes the reward
This is the next (3rd?) generation of the GSO-5.1 (preordered 4/2015, delivered 1/2016). http://surviveknives.com/gso-5-1/
I reviewed the previous version of this knife in a thread here: http://www.bladeforums.com/forums/s...n-to-SYKCO-511-SRKW-RatManDu-Cattaraugus-225Q
Just for a reminder, here is a pic of my now passed-along GSO-5.1:
Let's focus on the new
From the Survive! website:
Technical Specifications
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: 5.37"
Blade Height: 1.50"
Blade Thickness: .185"
Overall Length: 10.93"
Weight: 11.1 oz (knife only), 15 oz (w/ sheath)
The above are as listed on the site, but I've confirmed each with my own scales and calipers, they are right on the money :thumbup: I'll add some measurements as I describe the knife below.
The cutting geometry of the GSO-5.1, both the previous version and this one, is superb for a knife of this design. The 3/16" blade is saber grind with a 1/2" flat and a 1" primary bevel running 5-dps down to an edge that is only ~0.021" thick and ~20-dps with an even bevel honed to a hair-splitting finish from tip to choil. Outstanding for a production knife. The primary bevel tapers to 0.76" wide as it nears the tip for enhanced strength.
The tip itself, which is nicely in line with the handle, came pointy and sharp :thumbup:
The steel being used in this particular knife is CPM-3V heat-treated by Peter's Heat Treat in PA using a new protocol to enhance edge-retention, strength, and impact resistance, RC 59.5 - 60.5. Gone is the stonewash finish of previous models, Guy is trying out a new "peened" (bead-blast?) finish which is claimed to improve strength and corrosion resistance while also reducing glare. I test the durability of this new finish in a video and thread here: http://www.bladeforums.com/forums/showthread.php/1314914-Field-testing-the-new-finish/page4
[video=youtube;tusmZwVfgM4]https://www.youtube.com/watch?v=tusmZwVfgM4[/video]
The new production method also results in blades with a cleaner finish along the perimeter (no more cutting-marks) and sharper edges that are capable of throwing sparks from a ferro-rod. A groove cut for striking a ferro-rod is still more effective. It may not be necessary, especially if you're smart enough to bring an alternate striker for your ferro-rod, or better still a lighter or set of matches
, but it does improve the performance of the spine as a striker. Users can do this themselves with a dremel-drum or honing cylinder.
The jimping now extends ~1.6" from the handle-scales for a generous gripping platform. The jimping consists on a series of flat peaks and rounded valleys 1/16" each, with edges sharp enough to catch a bare or gloved thumb without digging in too uncomfortably... it isn't bad but is something that users may wish to modify themselves with a few swipes of a coarse diamond hone to round those edges down. *shrug* However, the edges of the jimping can be used for scraping tinder from wood, an advantage one may wish to reserve.
Survive! also implemented a new laser-engraver for a more refined look to their company logo, steel-type, and American flag:
As mentioned on the S!K website, the new GSO-5.1 is very similar in blade-specs to the previous version. What really sets this new version apart is the handle. It is about 1/4" longer at 5.1" (including the 1/8" extended pommel for hammering) - previous version was ~4.85". Along with that length, the handle is contoured both laterally and vertically, featuring a subtle curve to the spine at the palm-swell that settles it fully in the grasp of the user for a full-contact grip, and it tapers both from spine-to-belly as well as toward the index and pinky fingers, with a strong flare at the pommel. The scales on this particular knife are natural canvas micarta - the finish is unpolished for excellent retention without causing blisters in both wet and dry conditions. Retention could be further improved by carving a pattern into the scales similar to the Bussekin, and new Fiddleback and BHK production knives, but the grip is stellar as is.
In the swell, the handle is 0.9" thick x 1.32" wide, 3.85" circumference. This tapers to 0.67 x 1.04, 3.19" in the index groove and 3.12" above the pommel-flare. For my medium-size (7) hands, it bespeaks comfort well beyond most knives that I've handled. It gives the user full transfer of power from their muscles to the knife without undue hand-adjustment or pressure against specific regions of the handle - the stress is evenly distributed whether in hammer-grip, reverse, ice-pick, and so forth. When you thrust/stab with the knife, the entire handle keeps your hand from sliding forward, not just the integral guard.
The handle has something of a tear-drop cross-section, tapering from spine to belly. If you are used to knives with very round or very straight handles (e.g. Becker, Kabar, BRKT, BHK, etc.) then you may find this kind of contouring confusing
The tapering toward the blade allows for an easy pinch-grip for delicate slicing, and the taper before the pommel flare aids retention is a rearward grip for snap-cutting and chopping.
This handle is really really thought out.
Choked (forward) grip:
Snap-cutting (rearward) grip:
Like its predecessor, this knife has perfect balance.
Guy Seiferd's Survive! Knives has moved to Idaho where production continues, as do the growing pains. Survive! Knives is a "craft mid-tech" production company - Guy designs the knives to his specifications, orders the materials, has the materials processed to his specifications, gets the blades and handles and screws and sheaths sent back to him, then sharpens each blade (usually himself) and builds them with his team (currently 3 people including Guy) according to customer orders before shipping them out. On top of production, they try (really just one person) to manage customer service via e-mails, phone calls, internet posts on bladeforums and instagram and facebook and wherever else they have a presence... Yeesh!
Survive! Knives is a very small operation with various aspects of production out-sourced to professional groups here in the USA. As with any company, production delays happen. Something Guy has continually been criticized for is his optimistic estimations of delivery dates. He tried to do away with this problem by stopping his original business model of "pre-order" kick-start campaigns, but fans continued to demand that he take their money



And with patience comes the reward

This is the next (3rd?) generation of the GSO-5.1 (preordered 4/2015, delivered 1/2016). http://surviveknives.com/gso-5-1/
I reviewed the previous version of this knife in a thread here: http://www.bladeforums.com/forums/s...n-to-SYKCO-511-SRKW-RatManDu-Cattaraugus-225Q
Just for a reminder, here is a pic of my now passed-along GSO-5.1:
Let's focus on the new

From the Survive! website:
New for 2015 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.
Technical Specifications
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: 5.37"
Blade Height: 1.50"
Blade Thickness: .185"
Overall Length: 10.93"
Weight: 11.1 oz (knife only), 15 oz (w/ sheath)
The above are as listed on the site, but I've confirmed each with my own scales and calipers, they are right on the money :thumbup: I'll add some measurements as I describe the knife below.
The cutting geometry of the GSO-5.1, both the previous version and this one, is superb for a knife of this design. The 3/16" blade is saber grind with a 1/2" flat and a 1" primary bevel running 5-dps down to an edge that is only ~0.021" thick and ~20-dps with an even bevel honed to a hair-splitting finish from tip to choil. Outstanding for a production knife. The primary bevel tapers to 0.76" wide as it nears the tip for enhanced strength.
The tip itself, which is nicely in line with the handle, came pointy and sharp :thumbup:
The steel being used in this particular knife is CPM-3V heat-treated by Peter's Heat Treat in PA using a new protocol to enhance edge-retention, strength, and impact resistance, RC 59.5 - 60.5. Gone is the stonewash finish of previous models, Guy is trying out a new "peened" (bead-blast?) finish which is claimed to improve strength and corrosion resistance while also reducing glare. I test the durability of this new finish in a video and thread here: http://www.bladeforums.com/forums/showthread.php/1314914-Field-testing-the-new-finish/page4
[video=youtube;tusmZwVfgM4]https://www.youtube.com/watch?v=tusmZwVfgM4[/video]
The new production method also results in blades with a cleaner finish along the perimeter (no more cutting-marks) and sharper edges that are capable of throwing sparks from a ferro-rod. A groove cut for striking a ferro-rod is still more effective. It may not be necessary, especially if you're smart enough to bring an alternate striker for your ferro-rod, or better still a lighter or set of matches

The jimping now extends ~1.6" from the handle-scales for a generous gripping platform. The jimping consists on a series of flat peaks and rounded valleys 1/16" each, with edges sharp enough to catch a bare or gloved thumb without digging in too uncomfortably... it isn't bad but is something that users may wish to modify themselves with a few swipes of a coarse diamond hone to round those edges down. *shrug* However, the edges of the jimping can be used for scraping tinder from wood, an advantage one may wish to reserve.
Survive! also implemented a new laser-engraver for a more refined look to their company logo, steel-type, and American flag:
As mentioned on the S!K website, the new GSO-5.1 is very similar in blade-specs to the previous version. What really sets this new version apart is the handle. It is about 1/4" longer at 5.1" (including the 1/8" extended pommel for hammering) - previous version was ~4.85". Along with that length, the handle is contoured both laterally and vertically, featuring a subtle curve to the spine at the palm-swell that settles it fully in the grasp of the user for a full-contact grip, and it tapers both from spine-to-belly as well as toward the index and pinky fingers, with a strong flare at the pommel. The scales on this particular knife are natural canvas micarta - the finish is unpolished for excellent retention without causing blisters in both wet and dry conditions. Retention could be further improved by carving a pattern into the scales similar to the Bussekin, and new Fiddleback and BHK production knives, but the grip is stellar as is.
In the swell, the handle is 0.9" thick x 1.32" wide, 3.85" circumference. This tapers to 0.67 x 1.04, 3.19" in the index groove and 3.12" above the pommel-flare. For my medium-size (7) hands, it bespeaks comfort well beyond most knives that I've handled. It gives the user full transfer of power from their muscles to the knife without undue hand-adjustment or pressure against specific regions of the handle - the stress is evenly distributed whether in hammer-grip, reverse, ice-pick, and so forth. When you thrust/stab with the knife, the entire handle keeps your hand from sliding forward, not just the integral guard.
The handle has something of a tear-drop cross-section, tapering from spine to belly. If you are used to knives with very round or very straight handles (e.g. Becker, Kabar, BRKT, BHK, etc.) then you may find this kind of contouring confusing
The tapering toward the blade allows for an easy pinch-grip for delicate slicing, and the taper before the pommel flare aids retention is a rearward grip for snap-cutting and chopping.
This handle is really really thought out.
Choked (forward) grip:
Snap-cutting (rearward) grip:
Like its predecessor, this knife has perfect balance.
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