Military Review

KRISS KARD Pistol: another attempt to improve accuracy

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Great influence on accuracy weapons giving returns. An impulse directed back and up shifts the barrel away from the aiming line, because of which the bullet can be fired with a deviation from the desired trajectory, and the shooter has to constantly adjust the position of the weapon. Over the past decades, attempts have been made repeatedly to get rid of this unpleasant phenomenon. In the past decade, the American company KRISS USA, Inc. took up the problem of redemption. In the middle of the two thousandth, she created a Vector submachine gun with balanced automatics capable of fending off recoil. In the future, the designers of the company continued their work in this direction and by the middle of 2009, they prepared documentation on the new project. This time the purpose of the engineering work was to create a high-precision pistol.


KRISS KARD Pistol: another attempt to improve accuracy


At the beginning of 2010, the designers of the company KRISS USA Renault Kerbra and Antoine Robert received US Patent No. 20100031812 on the original design of the pistol with the “shutter rollback stretched in time and mechanisms to control the recoil and toss the barrel”. In the future, the project of such a gun was called KARD. The design of the KARD pistol used the idea that appeared in the previous draft of the submachine gun. To improve the accuracy of shooting, it was proposed to equip the weapon with a special balance bar. When firing, the balancer, which is mechanically connected with the bolt, should move downwards and thereby compensate for the recoil momentum, as well as the vertical toss of the barrel.

Most of the external parts of the KRISS KARD pistol are made of impact-resistant plastic. Early prototypes of this pistol had a characteristic “box-like” appearance, in which a peculiar influence of Glock brand weapons was felt. However, the internal mechanisms, as well as the principle of their work, are significantly different from those used on other modern pistols.

The KRISS KARD pistol is designed to use .45 ACP cartridges. With some modifications automatic weapons allows you to use other ammunition. The power supply is carried out using a box magazine placed inside the pistol grip. Due to the possibility of using various compatible stores, the stock of cartridges can vary within fairly wide limits.

The casing of the KRISS KARD pistol shutter is fixed. Inside it is rigidly fixed trunk. Such an attachment of the barrel to the frame is actually one of the methods to improve the accuracy of shooting. The shutter of the gun is lightened and not connected to the casing. For cocking weapons on the back of the bolt provides a rectangular block with notches on the sides. The pistol is cocked in the same way as other weapons of this class: the bolt is retracted and, returning to its place, it sends the cartridge to the chamber. Automatic pistol made according to the scheme with a semi-free shutter: the shutter is connected with a special balancer, affecting the speed of its movement.



In front of the gun, under the barrel, there is a part that distinguishes it from other small arms. On the special system of brackets and springs a balancer of complex shape is installed. During the shot, the pistol bolt under the influence of recoil begins to move backwards. With the help of a system of springs and the bolt is connected to the balance bar. Moving backward, the shutter shifts it. Being fixed to the rear end, the balancer abruptly turns a small angle down and back.

The additional mass in the form of a balancer slows down the movement of the bolt, which is why the recoil impulse affects the weapon for a longer time. This means that the arrow becomes easier to control the weapon. Moving down, the balancer also partially solves the problem of tossing the barrel. Under the effect of recoil, the barrel tends to rise upwards, but a relatively heavy balancer creates a moment of force directed in the opposite direction. By selecting the weight of the balancer, the KRISS KARD pistol design can be adapted to the use of any ammo.

The use of a moving balancer led to the formation of the characteristic appearance of the pistol. Early prototypes of the KARD model had a large front end casing. The box-shaped casing, the bottom surface of which was flush with the trigger guard, gave the pistol a futuristic appearance, but increased the total weight and could adversely affect the usability. Later the body shape of the KRISS KARD pistol was refined. The contours of the upper part of the casing of the barrel have changed, and the casing of the balancer has acquired a new triangular shape. In addition, on the bottom of the latter appeared Picatinny rail for installing the necessary equipment.

Automatic pistol, proposed by KRISS USA, has several advantages over existing schemes. First of all, it is the increased accuracy of firing. The recoil component, directed backward, is partially compensated by the movement of the balancer. In the same way parry toss the trunk up. In addition, the applied system stretches the effect of recoil in time, which helps the shooter to hold the weapon in the desired position during the shot.



The presented KRISS KARD pistol specimens had a Picatinny rail only in front of the balancer body. The design of this gun, in which the casing of the bolt is rigidly fixed on the frame, allows you to place the bar for the sight and on the upper surface of the gun. Thus, the shooter, if necessary, will be able to use not only a standard open sight, consisting of a front sight and a rear sight, but also other equipment, including a laser designator. A fixed barrel in addition to performing its direct function, which is to improve the accuracy of shooting, can facilitate the installation of flame arresters or silent shooting devices.

It is quite clear that the KRISS KARD pistol, like many other bold projects of promising weapon systems, is not without flaws. Perhaps the most notable of them is the large casing of the balance weight, because of which the shooter will need a holster of a new design. Another disadvantage is directly related to the architecture of internal mechanisms and is a congenital problem of all small arms with balanced automation. The massive balancer increases the overall weight of the weapon, and its relief will not allow to achieve the required characteristics.

Almost four years have passed since the first information about the KARD pistol appeared. During this time, no new information about the future of the project has appeared. Probably, tests of prototypes showed not only the advantages, but also the disadvantages of the new gun, after which its refinement began. The revision of the gun is not yet complete. Moreover, there is every reason to assume that the project was closed. This version is supported by the fact that KRISS USA, Inc. is currently producing only the Vector submachine gun and several modifications of it, and the KARD project is not even mentioned on its official website.


Based on:
http://thefirearmblog.com/
http://ru.scribd.com/doc/29968120/Pat-20100031812
Author:
17 comments
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  1. Silent
    Silent 14 January 2014 09: 38
    0
    While not a combat sample, but the concept is interesting. I hope the design will develop.
    1. makarov
      makarov 14 January 2014 11: 16
      0
      There are quite a few such fundamental approaches — stretching the recoil momentum in time and space, the only difference is in the approach of mechanics.
      But the author of the material, as well as the project leaders, probably deliberately "forgot" about the initial impulse, this is when the bullet hits the rifling and pulls the pistol itself forward ... indeed, the main thing for advertising is to say the right thing ...
      1. Sid.74
        Sid.74 14 January 2014 14: 44
        +1
        Quote: makarov
        While not a combat sample, but the concept is interesting. I hope the design will develop.

        Developed nowhere else did you judge Judge Dread? laughing
        Surely the Americans decided to embody all the Hollywood weapons. Combat lasers are now still a gunmaker with a million rounds of ammunitionlaughing

        1. Raphael_83
          Raphael_83 14 January 2014 19: 11
          +1
          Well, in fairness, I note that in the latest version of the film from 2012 their cartridges still ran out and even had to recharge laughing .
          But according to the systems of user identification, the variants of which are given in both films and have been discussed more than once on the site, the really existing samples are far from the "Legislators". I don't know - fortunately or not ...
  2. My address
    My address 14 January 2014 12: 42
    0
    That a long shutter speed reduces recoil is understandable.
    But that the balancer, going down, reduces the toss - sorry, this is a coup in mechanics. Did the author not hear about Newton’s third law? wassat
    That's what the balancer stretches the recoil time, it helps. Most likely, this is an incorrect translation of the text. Just, except under the barrel, there is no acceptable place for the balancer, which is rather called a damper.
  3. Mikhail3
    Mikhail3 14 January 2014 13: 03
    +3
    Quote: Silent
    While not a combat sample, but the concept is interesting. I hope the design will develop.

    What for? Why develop a device that has a fatal fundamental flaw? Whatever you do, but you get a gun by the weight of the machine. The text clearly states that reducing the weight of the balancer is impossible, and this is absolutely true. A balancer cannot be easier than necessary to compensate for recoil. That is, the weight depends on the power of the ammunition. Dead end.
  4. Floock
    Floock 14 January 2014 13: 40
    0
    Kickback compensation? Cheaters!
  5. alex-cn
    alex-cn 14 January 2014 14: 25
    0
    Ours built a pistol with balanced automation for the MO team for service pistol shooting 20 years ago. But since the customer was GRAU, the pistol did not go into wide production, only for the national team.
  6. ramsi
    ramsi 14 January 2014 15: 01
    0
    in my opinion, in this regard, for a pistol, there can be no alternative to a gas vent without a piston
    1. the47th
      the47th 14 January 2014 15: 55
      0
      That's right, hand howitzers to the masses!
  7. the47th
    the47th 14 January 2014 15: 57
    0
    I don’t understand why to extinguish the already small return of the gun?
    1. ramsi
      ramsi 14 January 2014 16: 40
      +2
      it starts BEFORE the bullet exits the barrel
    2. PSih2097
      PSih2097 14 January 2014 17: 37
      +2
      Quote: the47th
      I don’t understand why to extinguish the already small return of the gun?

      Have you shot at .45 caliber at least once?
    3. PSih2097
      PSih2097 14 January 2014 17: 37
      0
      Quote: the47th
      I don’t understand why to extinguish the already small return of the gun?

      Have you shot at .45 caliber at least once?
      1. Massik
        Massik 14 January 2014 18: 18
        0
        Well, they shoot like that since 1911 and nothing, it is unlikely that they are going to shoot from such a machine at 50m, the task is not to get into the enemy's eye from 10-20m, while this "super accuracy" at such distances is not quite relevant.
        1. mirag2
          mirag2 15 January 2014 07: 08
          0
          "Somehow" they shoot from the Desert Eagle ....
  8. uzer 13
    uzer 13 14 January 2014 18: 22
    0
    The gun has a lot of unnecessary details, but there is no sense in them. The cartridge for accurate shooting was chosen as the most unfortunate, having the shortest lay-out segment of the trajectory, which you can congratulate the designers. Without further ado, you can put a muzzle brake on any gun with a fixed barrel - the compensator for increased mass is just about you and the gun for accurate shooting is cheap and cheerful.
  9. _KM_
    _KM_ 17 January 2014 00: 32
    0
    They wrote about this project in one of the American forums that the system is good, but for machines.