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Military Grade Locking Combat Sheath
History,
Materials, Use, Options, Care
Notice! I make
these sheaths only for my own knives. I can't make one for a
factory knife or other makers' knife.
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Testimonial:
Hey Jay! Just got the knife today.
WOW!!! The pics you sent me did NO justice to the knife at all.
This is BY FAR the nicest knife I have ever owned! I was also
pleasantly surprised by how nice the sheath came out. For the last
few months I have been second guessing my decision for the locking
sheath. Now I am glad I went in that direction. The pics I have
seen of that sheath do not show how sturdy and well built that thing
really is. I think you may need to show a side profile of that in
one of the pics. That large slab of aluminum will show people its
more than just kydex bolted together. I think your description says
how it is built – but I didn’t understand till I actually saw it in
person! Anyways, thank you for a GREAT knife! I will look forward
to enjoying it for many years! Also, I'm
already planning my next one. You can be sure that I will be
showing it off to all my friends and letting them know about you and
the quality of your work! (most already know as
I've been talking about these knives for quite a while – but
I think they will be astonished when they see they experience your
work first hand)
Thanks again,
Adam Vuksich
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The Combat Knife Sheath


Every now and then, I get a letter that moves me.
It is one of the reasons I'm so hard on factories and other knife
makers about their work. It disturbs me greatly to know that our men
and women are not carrying the best knives into battle that this
country is capable of producing. Here's one of those letters and my
response.
Sir,
I'm currently deployed to Iraq and found that a back up is a must
have. I work in closely with the local population and my weapon at
time's cannot be used due to distance or situation. I have a
fainbrain-Applegate full size fighting knife now. I read your web
page and you seem to know what's going on with knifes and sheaths.
The problem I have is: I don’t have the proper sheath. I need a
combat locking sheath like in your pictures, so I can access my
knife in a split second. The best and most concealed place while in
IBA is the small of my back. Mounting the knife horizontal on my
belt seems the best. If you have any ideas on what to do or a
different path to take please let me know.
-TSgt H.L.
Ali AB, Iraq
Hello, TSgt L. Thanks for
writing. And thank you for your service to our country.
Your letter hit me hard.
It is truly sad that manufacturers and makers of knives do not
carefully consider the sheath when making and selling their knives,
and do not consider the lives that may be at stake because they do
not supply an adequate or useful sheath. All I can do is not make
that mistake on my own knives.
I’m sorry that I can not
make a sheath for your knife. My locking and combat grade sheaths
are constructed with the knife, in concert, so that
components like thumb rises, ricasso ramps, edge clearances, and
mounting variations must happen in the construction of the knife, so
that a workable locking sheath can be designed around the knife,
with the knife. Each individual sheath can only fit a specific
knife. Unfortunately, I cannot build a sheath around a factory knife
or other maker’s knife, as they don’t build the knife with the
components and geometry that will allow a locking sheath to work.
Beyond that, I get so many requests to correct inadequate sheath
work that I would be out of the knife making business, and into the
sheath making business only. Even if I did take on that type of
work, it would require the knife in my hands while you would be left
in the field unarmed.
I do make an extremely
good combat knife, and can make it to your specifications, to fit a
specifically designed locking combat sheath of my own construction.
I know my work is not cheap, but I’ve got one of the best track
records of useful and durable combat and tactical knives and sheaths
in the business.
I
know this does not help you at the moment. In the chance that
they might be of help, I would contact the company or maker who made
the knife and ask them to outfit their knife with a proper sheath.
Please be brutally honest in their shortcomings of the sheath they
supply for their knife, because it is your life and other lives at
stake.
Barring that, you may
have to do what I’ve heard of other soldiers doing in the field:
using found parts, moleskin, leather bindings, bent metal, screws
and other parts to make their sheaths work. I’m terribly sorry I
could be of no further help.
Jay |
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History
Years ago, some of my military clients (USAF
Pararescue, our nation's top military rescue service) asked me if I could make a
true combat grade locking sheath, one that would hold up to the rigors of real
combat, something that they could trust to have their knife ready at the
instant, yet secure the knife and protect the wearer during the high energy
activity of combat, tactical, and rescue operations. They requested that the
sheath be "bulletproof," that is, as tough as I could make it without extra
weight. So I worked and experimented, and came up with what I think is the most
durable, reliable knife sheath made, suitable for combat and rescue operations
in the desert, on the open ocean, and anywhere the need arises. You can see more
of these sheaths and the combat and tactical knives on my
Military and Tactical
Knives Portal Page here.

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Materials
The military grade combat locking sheath is made of about
40
components, all hand-fitted to the individual custom combat,
tactical, or rescue knife. The sheath is
matched to the knife and no other knives can be used in the sheath. The sides of
the sheath are made of two layers of Kydex® thermoforming plastic (methylacrilate
and polyvinylchloride), which is hot-formed to the knife bolsters and handle. The welts (or frame)
of the sheath is made of one or two layers of milled and dressed
5052H32 corrosion resistant aluminum, and bolted
together with blued steel or nickel
plated steel Chicago screws. There may be one or several belt loops, and
they are bead blasted and die-formed aluminum, secured with Chicago screws.
The belt loops can be made variable, reversible from front to
back or even adjustable for horizontal or vertical carry. See the thumbnail
photos above. The
locking mechanism is stainless steel, the parts are 304 stainless and 302
stainless, even the spring is stainless steel.

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Appearance
Most of my kydex military combat
sheaths are black, with satin aluminum welts at the edges.
Occasionally, I'll get requests for a different look. By custom
order, I also use gray kydex, forest camo (traditional), desert camo
(traditional) and even modern standard marpat camo and desert marpat
camo kydex. An additional charge is required for these more
expensive patterned camo colors. Just ask!
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Use
The knife may be worn in any position, even upside down. The security is
provided by the belt loops secured to a tactical belt
(usually a 1.75" military grade nylon utility belt) which is secured to the
body, and the tang lock bar that engages on the spine of the knife. To release,
a simple combination movement of the hand is all that is
required to pull knife from sheath. To sheath the knife,
make sure that the blade is aligned correctly and slide
knife into sheath until it "clicks" into locked position. Important:
visually check or tug on knife handle to make sure that the knife is locked,
every time you use it.
Once locked, the knife cannot be removed until unlocked.
News Flash!
I've removed the close up pictures of the mechanism and the description, after I
noticed that several foreign web sites were posting my pictures of how it
worked. These guys can't come up with an original idea, so they're trying to
steal mine. This also brings up an addition and curious benefit of my locking
combat sheath. When I first hand a knife in lock-sheath combo to someone who is
new to this device, they fumble, tug, press on the wrong area, and are confused
by the mechanism and how it works. Because the mechanism is unique and original,
the knife owner must familiarize himself with it. This takes about five minutes
to understand just how it works. Several of my military clients reminded me that
the moment of confusion in a combat situation may be exactly what prevents an
enemy or attacker from grabbing your knife from your sheath, and using it
against you! So I think its doubly responsible to remove the particulars of the
mechanism and how it works in great detail from the public part of my web site.
If you purchase one of my knives with this mechanism, you'll get complete
instructions and details of its operation.

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Options
Often, a client will ask for additional
options for the locking combat sheath, most often in the way the sheath is worn
or how it attaches to the gear, belt, or body. I’ve done several
different things with the sheath mounting methods, but
I have stayed away from too many devices, because they create
"stand-offs" Stand-off devices make the knife stick out from the body
even more, and that will hang up, snag on objects, interfere with
movement in close areas (like onboard aircraft, ship,
or within structures during sweeps)
and be an extra source of concern the wearer doesn’t need at
a critical time. That’s why I
try to make the sheaths as
flat and with mountings that hold the knife and sheath as
close to the body as possible. Occasionally,
someone will suggest a rotating element or removable lock and detents like a
cell phone holder, but if you’ve worn a cell phone, you realize that it gets in
the way, hangs up on things, turns and flips open at the worst possible time.
That’s why they’re more often carried in a pocket, to be closer to the body.
Also, this is a large extra expense to make and incorporate into the sheath.
On some knives, I can incorporate a belt loop
system that allows a horizontal or vertical orientation to the sheath. These can
be complicated, so expect to pay more for this option. Also, the knife style may
not accommodate this type of arrangement. Some guys request additional flat
straps, which are really belt clamps, to screw the sheath tightly to the belt.
These are made of the same aluminum, and can be installed and removed at the
Chicago screws.
Another option is to include a side release
tab on the sheath lock mechanism. This is done if the angle is not big enough to
insert the thumb, or if the user frequently wears gloves, or if they wish to
operate the release from outside the sheath. It costs in security, though. It
adds a protrusion that may hang up on obstacles, or could increase the
possibility of accidental sheath release.
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Care
My locking combat tactical
sheath is probably the best made anywhere. All of the components are
waterproof, it is assembled with waterproof cement and solid
fasteners. Some minor care will allow the sheath to last as long as
the knife. If used in dirty or salt water environments, clean by
rinsing in mild soapy water, followed by a rinse in clear water.
Work the locking mechanism by hand to make sure there is no debris
that would interfere with a smooth hinge and spring operation. When
dry, spray the mechanism with silicone spray lubricant only. Do not
use oils, they will attract dirt and soften the waterproof cement.


If you have a problem with the locking mechanism of the sheath,
please do not attempt a field repair. The mechanism is assembled
under tension and once removed, the machine screws can not be
reinserted in correct alignment. Just send the sheath (with knife)
back to me, and I’ll tune it up for you for free!
Notice! I make these sheaths only for my own knives. I'm sorry I
can't make one for a factory knife or other makers' knife.
| Jay Fisher Fine Custom Knives |
| at Enchanted Spirits Studio |
| 1405 Edwards, Clovis NM 88101 |
| email:
Jay
Fisher |
Maker's point: the military grade
tactical locking combat sheath is difficult to make. Other
knifemakers soon find this out in their own attempts, and usually
just discard the whole idea. I've seen posts on knife forums where
other makers are looking for the "locking mechanism that Jay Fisher
uses" on his combat sheaths. There is no place you can buy the
components, each are hand-made, and each sheath fits only one
individual knife. This is probably why you don't see these kind of
sheaths more often. The sheath adds usually $300 or more to the base
cost of the knife. Why? Click on these thumbnail pictures, they are
my typical bench set up for some of the construction, set up, and
assembly of ONE locking sheath. Not shown: Bridgeport Knee Milling
machine, mini-milling machine, two belt grinders with six set-up
arrangements, disc grinder, three drill press set-ups, metal cutting
band saws with 4 set-ups, and other jigs and machines necessary to
create just one of these sheaths!

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