How tHe KRISS SupeR V SyStem woRKSSometimes, complex problems require very simple solutions. And so it is with the KRISS operating system.

The original invention that led to the creation of the KRISS system was the brainchild of a highly original thinker and arms engineer, Mr. Renaud Kerbrat. While undergoing a lengthy hospital stay recovering from a serious injury, the idea came

to him that it just might be possible to re-invent the way traditional firearms operate. An avid tinkerer with access to a gun and machine shop, Mr. Kerbrat found a financial backer to help with the initial prototyping. (Figure 3) Now, some eight years later, it is remarkable how similar the original, hand-made KRISS mechanism is to that which is contained in today’s KRISS semi and full-auto firearms. The KRISS mechanism as executed in the KRISS Super V family of pistol caliber firearms is a gas operated delayed blowback design firing from the closed bolt position. The key to the whole system is the bolt-slider assembly. And while

appearing to be a very simple design (and it is), many years and millions of dollars have gone into understanding the variables that define the performance parameters of the KRISS. (Figure 4) Note that the bolt is very small and very light weight. It weighs

about 15% of what a traditional 1911 .45 bolt weighs and the UMP .45 bolt weighs nearly 10 times what the KRISS bolt weighs.

How can the KRISS bolt be so small and light? The simple answer is because the bolt is not asked to perform any other task other than to engage with the slider mass, strip and eject the spent round and chamber a new round on the way back to the in-battery position. With a round loaded, an overhead hammer swings down and through a channel atop the bolt and impacts the firing pin. As the gases begin to push the bolt backwards against the slider mass, the motion is delayed slightly by the notch found in

the slider rails, which once overcome, allow the bolt and the slider mass to rotate downward into the bottom of the firearm. In addition to being light, the bolt literally only has to travel a slightly longer distance than the length of the cartridge. As the

return spring returns the slider and bolt back to firing position, a new round is stripped and chambered.

Note that this mechanism is exactly the same no matter what KRISS firearm it is fitted to; the same mechanism can run our SMG at 1100 rpm as well as our semi-auto firearms. In years of testing and after hundreds of thousands of rounds, no major part has ever failed.

Here’s how a full cycle of the KRISS mechanism works. Figure 5 illustrates the KRISS mechanism in battery; a round chambered and ready to fire. As the hammer falls and the round fires, the bolt is held in place momentarily by the notches cut into the slider top rails. When enough gas energy is created to overcome the détentes in the top rails, the bolt engages with the slider mass and pushes it downward against the return spring. Note how even the bolt rotates down and away from the operator, transferring its energy to the slider mass which by virtue of being held captive by

the slider rails, has nowhere it can go except downward. By doing so, it overcomes the barrel’s tendency to rise as shown in Figure 6.

We mentioned simplicity before, however, it took a major cooperative program between KRISS-TDI and the US Army Small Arms Center of Excellence, ARDEC Picatinny arsenal to determine the optimal relationship between the weight of the bolt and

slider mass, the angle in which it sits in the firearm and the spring rate.

Finally, in Figure 7 the mechanism has reached full stroke with the slider and bolt pushed far down into the firearm and ready to start the return path for the next round. The result when firing the KRISS is remarkable.

Even when firing our SMG one-handed at 1100 rounds per minute the KRISS maintains its level profile and permits the operator to continue to put rounds exactly where he wants them to go. Try that with an UMP .45.

Simple, Rugged and effectiveMore Rounds on Target, More of the Time

family of fiReaRmSAbout Our Firearms

We’re often asked, “Why did you start with .45?” The two-part answer is: First, remember that the initial KRISS firearms were designed to be MIL firearms and at that time, the Joint Services group was actively out researching and getting proposals from makers of .45 sidearms to replace the Beretta 9mm which had proven so problematic in its early days. Unfortunately, the JS group could not decide on a COTS 1911 and threw 2 years and millions of dollars away giving up and going back to 9mm.

The second reason is that from an engineering standpoint, we wanted to prove the KRISS capabilities to the MIL/LE and CIV markets with the most robust commonly in use caliber, which no one would argue against is the .45 ACP.

All the models* below are available in .45 ACP and .40 S&W and we continue to work on other calibers as we grow our business.

KRiSS Super v vector cRB/So Semi-auto carbine

Folding and fixed stock models. 16” standard length barrel with 18.5” version available for Canada.

KRiSS Super v vector SBR/So Semi-auto Short Barrel Rifle

Folding and fixed stock models. 5.5” standard length barrel with custom lengths optional. Not available in all States or municipalities.

KRiSS Super v vector XSmg full-auto Submachine gun

Folding stock only. Restricted to LE/MIL sales only. Standard 5.5” barrel with custom lengths available. Can be built as semi-only or semi + two round burst.

KRiSS Super v vector Sdp/So Semi-auto pistol

ATF approved pistol variant of KRISS SBR/SO. Standard 5.5” barrel with custom lengths available. Not available in all States or municipalities.

KRiSS Super v vector Semi-auto lower Receiver

Available in .40 S&W and .45 ACP, this lower-only option enables an owner of either a .45 or .40 firearm a fast and affordable option of using his KRISS Upper Receiver on either caliber lower. (Uppers are completely interchangeable.)

*Models shown with optional equipment

M-F 0800-1700 ET • Phone: (757) 821-1089 • Fax: (757) 821-1094 • www.kriss-tdi.com

tecHnology and SpecIfIcatIonS

the KRiSS family of fiReaRmSMore Rounds on Target, More of the Time

tHe pRoblem: Unmanaged RecoilIf the basic objective of a firearm is to put a round exactly where the operator wants it to go, then why is it that every other firearm in the world works against the operator’s ability to accomplish his mission of consistent accuracy?

All traditional firearms share a common operating system trait; all the forces created by firing a round are driven back right into the operator’s shoulder, causing high levels of felt recoil as well as upward rotation (muzzle climb) of the firearm.

What’s the result of all these recoil forces driving the operator backwards and the muzzle climb? It’s simple; the operator must constantly adjust his balance and re-acquire his sight picture before firing another round! The result is more misses and greater delays in firing the second and subsequent rounds accurately as the operator constantly has to re-aim the firearm.

The other significant problem with all other traditional firearms is that the only way they can attempt to mitigate the forces of linear recoil is to build firearms that are larger, heavier and less maneuverable than they should be. The larger and heavier the frame, the more recoil the frame absorbs.

But, who wants a firearm that’s bigger and heavier than it needs to be… especially a firearm that needs to be re-aimed after every shot?

It doesn’t matter if the operator is a civilian spending a day on the range, a SW/SR law enforcement officer engaging in urban CQB or a special ops professional who’s kicking down doors, size and accuracy matter a great deal. When lives and public safety are on the line, wouldn’t the operator want the most accurate and controllable firearm he can get?

tHe SolutIon: The first major advance in firearm operating systems in more than 120 yearsThat’s the question that KRISS engineers had in mind when they invented what we now call the KRISS® SUPER V SYSTEM™. This patented operating system is based on the very simple notion that it was possible to build an operating mechanism that actually works with the operator to help get more rounds on target more of the time.

How did they do it? Sometimes simple solutions can solve very complex problems. The KRISS engineers designed an operating mechanism that instead of slamming back into the shooter’s shoulder, absorbs and re-directs the recoil impulses down and away from the shooter’s hand, arm and shoulder. No one is claiming that the KRISS engineers have somehow re-invented Newton’s 3rd Law, but it’s fair to say that they’ve bent it a bit. Instead of slamming back into the operator’s shoulder, the KRISS System absorbs recoil energy and re-directs the energy down and away from the

operator. In essence, the KRISS System minimizes the amount of recoil generated, absorbs the energy, re-directs it downward; everything that in traditional firearms slams back into your shoulder is re-directed in the KRISS.

Remember the size and weight discussion? Because the mechanism of the KRISS System minimizes and re-directs recoil energy, KRISS-TDI does not have to rely on the size and weight of the firearm platform to absorb these energies. Net? For example, the KRISS SMG .45 ACP submachine gun runs at 1100 rpm and is smaller and lighter than the H&K MP5 firing 9mm. In US Army testing, the smaller and lighter KRISS, firing .45 ACP 230gr ammo produced 60% less felt recoil and 95% less muzzle rotation than the heavier and larger MP5 shooting 9mm! For you folks who remember geometry, the KRISS experienced 1.8 degrees of muzzle rotation per shot; the H&K MP5 9mm rotated 18 degrees per shot.

Now, which firearm would you reckon can help you get more rounds on target?

M-F 0800-1700 ET • Phone: (757) 821-1089 • Fax: (757) 821-1094 • www.kriss-tdi.comKRISS® is a registered trademark. Super V™, CRB/SO™, SBR/SO™, and SDP/SO™ are trademarks of TDI, Inc.

Equip Your Kriss to Fit Your MissionAt KRISS-TDI, we recognize that “one size does not fit all.” As such, we’ve developed an Accessory assortment to help you get more from your KRISS. These great accessories are available from your local KRISS Certified Dealer, or from the KRISS-TDI website.

We offer such items as the MagEx 30-round magazines (photo 1), slings and sling mounts (photo 2), custom lights (photo 3), suppressors (photo 4), and cases (photo 5), all designed to enhance your KRISS. And, like all KRISS products, warranted against defects in materials and workmanship for the lifetime to the original owner.

Words and pictures are great, but nothing beats getting your hands on a KRISS firearm and experiencing for yourself the only firearms in the world that actually help you put more rounds on target more of the time. After all, isn’t that the point? We have nearly 100 committed KRISS Certified Dealers who each have a KRISS demonstration firearm in their stores. Drop by and pull the trigger, and we guarantee it’ll make your day.

The KRISS family of firearms has grown from our very first demonstration prototype SMG developed 4 years ago in cooperation with the USA ARDEC Picatinny Arsenal. As such, the KRISS SMG, and now all its follow on products, are all designed, built and constructed to MILSPEC standards for reliability, ease of service and long life. We have used the finest in materials in order to deliver on the demands of harsh military environments. In fact, the KRISS SMG’s were subjected to the USA’s Aberdeen Test Center rigorous Environmental and Endurance testing (same tests that all USDOD firearms are subjected to, and passed with flying colors…..30,000 continuous round without a single serious failure. Of course, we didn’t pass the Sand and Mud tests; but it is rumored that the only weapon in history to pass that section of the test is the AK-47.

What’s important to us and our customers is to field a firearm that delivers on very high expectations for accuracy, reliability, ease of service and a very long service life.

Feature Technical KRISS Super V KRISS Super V KRISS Super V KRISS Super V Specifications CRB/SO SBR/SO* SMG/SO SDP/SO* Models US 16”Carbine: 5.5”ShortBarrel: 5.5”Sub-gun: 5.5”Pistol: FoldingStock FoldingStock FoldingStock NoStock FixedStock FixedStock N/A N/A Canada (18.5”FixedStock availableforCanada) N/A N/A N/AMarket CIV CIV LE/MILonly CIVOperating Closedbolt,delayed 3 3 3 3

Action blowback,semi-autopatentedSuperVSystem Caliber .45ACP*** 3 3 3 3

.40S&W*** 3 3 3 3

Standard MWICustomFlipuptacticalsights EquipmentPicatinnyrailstopandbottom Glockmagazine Customcleankit Customcablelock Lightreceptaclecover Gripstoragemodule Magazines.45ACP:13-round 3 3 3 3 Glock21 .40S&W:15-roundGlock22 Optional17-roundKRISSMagExkitprovides30-roundcapability**. FullycompatiblewithnewerG21andG22modelmags. Dim. /Wt. Lengthopen 34.8” 24.3” 24.3” N/A (USFixed&OpenStock) Lengthfolded** 26.5” 16.0” 16.0” 16.0” Height 6.9” 6.9” 6.9” 6.9” Weight 5.8lbs 5.6lbs 5.6lbs 5.4lbs (Unloadedwithoutaccessories) Fire Ambidextrous 3 3 3 3

Control Fire/Safesettings Muzzle (UsingStd.230gr. 875FPS 850FPS 850FPS 850FPSVelocity FMJammo)PerformanceMax.EffectiveRange: 150m 100m 100m 100m Groupings100m: <6” <12” <12” <12” Groupings25m: <1” 1” 1” 1” Barrel Twist:16:1 Design:CR-MOSteel,hexagonalrifling ConstructionMeets/exceedsTOPS/MILSTD810F Advancedmetalcomponents:A2and4340/4140chrome-molysteelalloys,heathardened/manganese phosphatetreatedwithaerospace7075/6061hard-anodizedaluminumalloys. Aerospacepolymercomponents:Lightweightinjection-moldedhousingsof15%fiber-reinforced Ultramid™Nylon6/6compositealloytreatedfortoughnessandenvironmentalprotection. Popular KRISSMagEx30RoundMagazines Options AluminumandTitaniumSuppressors SinglePointSling,Slingmounts SurefireCustom80LumenTacticalLight EOTech512HolographicRedDotSight ThreadedBarrels(M16x1LHT) MSRP $1,745.00 $1,895.00 Callforquote $1,645.00*NotavailableincertainStates/municipalities.RequiresFedtax. **NotavailableincertainStates. ***UseONLYKRISSApprovedAmmo.NoReloads.UseofunapprovedorreloadedammovoidsLifetimeWarranty.

M-F 0800-1700 ET • Phone: (757) 821-1089 • Fax: (757) 821-1094 • www.kriss-tdi.comKRISS® is a registered trademark. Super V™, CRB/SO™, SBR/SO™, and SDP/SO™ are trademarks of TDI, Inc.

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