EP0985125B1 - Self-loading pistol, conversion kit for locking self-loading pistols and weapons system for assembling optionally a locking or non-locking self-loading pistol - Google Patents

Abstract

An unlocked self-loading pistol and a conversion kit for modifying a locked self-loading pistol adapted for firing normal and powerful cartridges into an unlocked self-loading pistol capable of firing weak cartridges as well as normal and powerful cartridges is disclosed. The unlocked self-loading pistol includes a return spring which is closely surrounded on the outside by a sleeve composed of an elastomer material. The length of the elastomer sleeve corresponds approximately to the length of the compressed return spring. The sleeve absorbs a part of the movement energy of the breech and passes it on into the grip. The conversion kit can be used to convert a locked self-loading pistol into an unlocked self-loading pistol as stated above and vice versa. The disclosed conversion kit includes: an alternate barrel which does not come into locked engagement with the breech, the abovementioned elastomer sleeve, and, optionally, a substitute return spring. The locked self-loading pistol and the conversion kit together form a weapon system which can be used to assemble a locked self-loading pistol or an unlocked self-loading pistol, as desired. The unlocked self-loading pistol can fire very lightly filled ammunition and normally filled ammunition without malfunction, and additionally ensures that the breech will withstand the firing of heavily filled ammunition.

Description

The invention relates to a self-loading pistol, with: a grip, a barrel firmly supported on this, an at least partially located behind the barrel, in the longitudinal direction between a front closed position and a rear opening position movable closure and one multi-turn, helical closing spring that closes the closure presses into the closed position and so in its open position is squeezed with all gears sitting on each other (preamble of claim 1).

Furthermore, the invention relates to a conversion kit for a Convert a locked self-loading pistol that is used for Shooting strong pistol cartridges is designed and comprises: a handle, a movable barrel, which in fixed connection with the closure can be brought, and a Closing spring (preamble of claim 4).

Such a pistol is, for example, from German Patent DE 41 09 777 C (HECKLER & KOCH) is known and is from manufactured by the applicant.

Finally, the invention also relates to a weapon system, from an optionally locked or unlocked Self-loading pistol of the type specified in claim 10.

Stronger pistol cartridges, such as the 9 mm Parabellum cartridge, are usually made from locked self-loading pistols Missed. In these, one connects Locking device the barrel and the breech mostly so tight with each other that both, from recoil one shot cartridge driven, first one cover the common return path. Only then does the Locks itself from the barrel and sets its further Return path now alone. Meanwhile, the empty cartridge case ejected, an ignition device cocked and the next cartridge updated.

However, it is also the case with most of the cartridges mentioned possible to use an unlocked ground lock; provided the force of the closing spring and / or the mass of the closure are chosen high enough. Such Mass locks are wide with submachine guns common. These are used to support the barrel when shooting not only the mass, but also the kinetic Energy of the closing lock used.

There are also known pistols with a mass lock, the Shoot cartridges of the type mentioned at the beginning. This overall heavyweight pistols, however, have one Excessive closing spring, which makes loading very tedious and often only to be accomplished after sufficient practice is. Therefore come for cartridges of the type mentioned only locked pistols in question these days.

There are often particularly weak cartridges of this type Laborations that e.g. used in target shooting. This allows the hit result to be optimized Reduce noise pollution, protect the bullet trap or completely Simply protect the cartridge cases when reloading Reduce powder consumption and thus the cost of shooting reduce.

Such ammunition can also be locked in Shoot self loading pistols, their Locking devices on standard commercial ammunition are coordinated. However, their recoil is not enough to to ensure reliable loading of these weapons. Usually the guns just stay closed and must be loaded by hand after each shot. Also the above described pistol with mass lock can be used not load such ammunition automatically; if only because its closure is too heavy. Exercises that are quick Firing multiple shots may require using such weapons and such weak ammunition cannot be carried out.

It is true with many locked pistols, mostly Militar pistols, a small-bore retrofit kit known to one Small caliber run and a matching, unlocked Has ground closure. This small caliber run and the Mass lock can be locked on the handle of the Gun can be mounted. After assembly, you now have one Small-caliber pistol available in the found position, Trigger weight etc. of the original, locked pistol strongly resembles. Such a pistol is, for example, in US-A-1 563 675 shown. With this known small caliber retrofit the Guide rod for the caliber closing spring quite long. That is why there is one on the rear end of this rod Buffer sleeve, on the front end of which is the small caliber closing spring supported. Of course, this is on small caliber converted pistol not suitable for a cartridge shoot that into the original, locked pistol can be loaded. Even if you unlock that Conversion system would design for the same cartridge as that locked gun, you would have to face the difficulties struggle that has already occurred in connection with serious Guns with ground lock have been described.

Cartridges of the type mentioned above (e.g. 9 mm parabellum) it also in shot execution. Here they are only weak loaded to a satisfactory cohesion of the To achieve shotgun. Such cartridges are used by hunters, Hikers lumberjacks etc. in snake-prone areas often used for snake control. Such a cartridge loads you usually go into the self-loading pistol chamber, while the magazine with usual (heavily loaded) Bullet cartridges being loaded. For a snake it is The shotgun cartridge is then ready. If you meet instead larger predators or predators, such as an overgrown one Dog, then you have to load it by hand to defend it, after firing the shotgun cartridge. After that you can to use the self-loading pistol in the usual way.

Only revolvers offer the option of shot and shot Ball cartridges in any order to load and without additional manual reloading to fire sequentially.

The invention would like to provide a self-loading pistol places that are designed to fire the weak Ammunition is set up; also a conversion kit, by means of which a conventional locked Self loading pistol, used to shoot conventional Ammunition is set up to fire the mentioned weak ammunition can be converted; finally a weapon system with a self-loading pistol, the one for shooting normal or weakly charged Ammunition can be set up.

For the weakly charged cartridges mentioned comes in handy only an unlocked self-loading pistol in question because that Releasing the lock consumed too much recoil energy, so that the subsequent loading process no longer done reliably. But it should be the above mentioned Disadvantages are avoided.

Now it would basically be possible to use a sealing compound and a closing spring force, such as for light, usually Unlocked pocket guns are used, simply on Transfer pistols, which, incidentally, for the larger, cartridges are set up. Such The measure would bring a functioning pistol. Would accidentally come out of such a pistol Standard-charge cartridges would be fired, and would then shut and grip where these parts are at the end of the Turn back, quickly damaged. Such Gun would soon be useless, even if it did Shooting the much too strong ammunition maybe without Would withstand breakage (of parts).

The above object is thereby according to claim 1 solved that the closing spring from the outside of a tight Sleeve of elastomer material is enclosed, the length of which about the length of the compressed spring at the end the lock return corresponds.

Lock weight and force of the closing spring are so designed that the function of the weapon with the mentioned, weakly charged cartridges are trouble-free. The one from the Elstomer sleeve and the compressed closing spring The buffer arrangement formed is no further for this required. However, it accidentally becomes a strong cartridge loaded, then the closure does not only hit the turns of the closing spring sitting on top of each other, but also on the elastomer sleeve. This creates the Elastomer sleeve a first buffer effect.

Now there are elastomer buffers to dampen the end stop a lock against the handle of one Self-loading pistol known (EP-A-0 287 785). The However, the elastomer sleeve has another essential one Effect: the striker is sitting on top of each other Windings heavily loaded, for example, if one is too strong Cartridge is fired, then the coils seek avoid each other sideways. In the invention, this is hardly possible because the elastomer sleeve turns the windings to the side supported. However, the elastomer material gives in Depending on its stiffness any lateral Pressure of winding elements locally a little, so that then elements of the elastomer deflected locally resiliently become. This deflection takes place in cooperation with one Squeezing the elastomer sleeve and can be quite local be significant. Because of the hysteresis effect of each This way, the chosen elastomer will produce recoil energy consumed to a significant extent, so that the damping effect such an elastomer sleeve is significantly better than about that of a stiff additional spring. In addition, the spring action the fully compressed closing spring, as before, dependent on tolerances. Because of the lateral support of the The closing spring is fully effective compressed state namely reproducible.

The length of the elastomer sleeve determines when its Damping effect. The elastomer sleeve can last longer than the fully compressed closing spring. Your optimal length is determined when optimizing the weapon. The optimal hardness and hysteresis effect of the elastomer sleeve are determined by the choice of material.

With the self-loading pistol according to the invention it is possible to Cartridges with a much wider range of performance variations to lock than previously locked and unlocked self-loading pistols was possible; e.g. from like this weak cartridges, as they have so far hardly been locked in Guns could be fired up to as powerful Cartridges for the previously unlocked pistols Excessive closing springs had to be equipped.

Only with extremely strong cartridges, for example with Ordonnance cartridges designed for submachine guns can not always completely rule out charging problems be when the self-loading pistol according to the invention also for the above-mentioned weak cartridges is set up. The Firing such cartridges does not lead to one Damage to the gun.

With the pistol according to the invention, it is now possible for the first time to fire both weak disc loads or shot cartridges and normal loads without problems, which was previously only possible with the revolver. For self-defense, eg against burglars can only one non-fatal shot being fired as a warning shot (shot) (stopping power), this should be left without reaction of the attacker can be shot "sharp". A hunter can now, for example, provide two shot cartridges for snake control and fill the rest of the magazine with normal cartridges. Shot and "normal cartridges" can be loaded alternately, without any specification of the cartridge type. If, for example, he is approached by a shot boar, then, like a revolver, he only needs to fire the two shot cartridges and can then defend himself against the boar with the remaining normal cartridges. For self-defense, for example, a shotgun cartridge can be loaded as the first cartridge for a targeted warning shot, which may cause minor injuries. In principle, however, cartridges of the type mentioned can be loaded in any order regardless of their type and fired without interference.

The self-loading pistol according to the invention has one Revolvers with its usually only six available standing shots take advantage of a much larger one Magazine filling of e.g. fifteen shots. You can also use another magazine any number of times in just a few steps be reloaded. Finally, magazines can use Special cartridges are kept ready for use.

As usual, the closing spring can be made from a wire round cross section to a helical compression spring with round outer circumference. Preferably the Closing spring, however, formed from a spring steel band (Claim 2), so that when the spring is compressed individual turns sit flat on top of each other. The danger of lateral deflection of the individual turns at full compressed closing spring is thereby reduced, but not canceled. The elastomer sleeve can also then with the closing spring fully compressed transversely to their Axis are loaded. For the rest, such a spring proven to be particularly favorable since they have a high Overload can be exposed without harm to take.

As a helical compression spring in the sense of the invention also a plate spring package can be viewed.

According to a further advantageous embodiment of the Invention sits the elastomer sleeve when compressed Closing spring in a bore of the handle (claim 3), which supports the elastomer sleeve from the outside while doing so affects their deformation properties.

This hole does not need to cover the entire circumference extending inner wall, but can e.g. to the Run open or slotted. This will even advantageously the inclusion of an uncontrolled Air cushion prevents the effect of the elastomer sleeve in an unpredictable way.

The invention relates not only to an unlocked one Self loading pistol as described above, but also a kit to convert a locked Self-loading pistol, which normal cartridges and strong cartridges can fire, but not weak cartridges. through of the conversion kit can the locked self-loading pistol be converted into an unlocked self-loading pistol, which cartridges of the same size, but essential can shoot less strength. If necessary, you can the weak cartridges should be mixed with normal cartridges.

So it is possible with the same weapon and especially with always the same trigger characteristics cartridges of all to shoot possible charge levels in self-loading mode; especially the above-mentioned weak charges that so far only with locked pistols of the appropriate caliber could be fired by hand after loading.

The conversion kit is locked according to claim 4 Self-loading pistol set up, which comprises: a Grip, a movable barrel that is in firm connection is bingable with the closure, and a helical Closing spring. According to the invention, this pistol characterized by a firmly in the grip, without intervention in the lock attachable barrel and through a Closing spring from the outside tightly enclosing sleeve Elastomer material, the length of which is approximately the same as the length of the compressed spring corresponds. The can Lock spring of the locked self-loading pistol also through an exchange closing spring with a different characteristic be replaced.

As an exchange closing spring is such according to claim 5 made of steel strip preferred, as already related above was explained with claim 2.

The closure is usually kept. However, it is also possible to provide an exchange closure, the Mass from that of the original clasp differs (claim 6).

"Running" here means the "running group" that in addition to the actual run, elements belonging to it the locking device comprises. Where the real run is separable from the elements mentioned, it is possible to keep the actual run. Further the elastomer sleeve needs one around the closing spring available space to accommodate this Elastomer sleeve. A handle that, due to its Construction for this does not offer any recording space, too not be converted. So far the handle but structurally can be changed so that this recording space if necessary is created, it is a below treated weapon system that consists of a self-loading pistol and a conversion kit.

An important basic idea is, at least the handle with the trigger, if possible also the Sighting device, for both the locked and the to maintain the unlocked version of the self-loading pistol.

A locked one that is particularly suitable for retrofitting Self-loading pistol is the German patent DE 41 09 777 C Applicant discloses. In this pistol, the in Longitudinally movable barrel at the top of the Cartridge end of an essay, which in a recording engages in the carriage (this is the lock). Below of the cartridge chamber is a guide at the rear end formed in a backward movement of the barrel Counter elements on the handle engages so that the rear Running after continued backward movement of the run is moved down. This finally comes the closure free from the attachment and can move further backwards alone move.

In the replacement barrel according to the invention, this attachment is missing, see above that the breech never interlocked with the barrel can kick. Furthermore, the leadership is set up in Handle to be held firmly so that the barrel does not is loose in the handle (claim 7).

Some pistols have a joint link as a guide on the barrel attached, which is penetrated by a cross bolt. This is to be replaced by a rigid link.

With other pistols, the guidance is one Guide surface formed on a cross bolt slides. This guide surface is through a To replace the abutment, which holds firmly in the cross bolt place. This lock is similar to the pistol of the above. Patentes DE 41 09 777 C. However, this slides Guide surface on a counter formation of a movable Buffer rod along, which in turn is the guide rod of the Closing spring serves and also an additional buffer spring having.

According to claim 8, this buffer rod is by a Exchange buffer rod replaced, which in turn immovable can be fastened in the handle, in which the guide surface is immovable. Because this replacement buffer rod does not perform a buffer movement, it does not have any Buffer spring on. Rather, the replacement closing spring extends over the entire length of the buffer rod and carries the elastomer sleeve on the outside.

The original known buffer rod has an elongated one Recess on top of a fixed - to disassemble the Removable weapon - slide the cross pin along the handle can and strikes against it with its limitations. According to claim 9, the replacement buffer rod has one Recess that is not elongated, but complementary is formed to the cross pin and thus by this can be kept stationary.

Depending on the particular construction of the locked self-loading pistol, the barrel is more or less visible from the outside. This applies at least to the Surface area of the barrel that when closed Sled through the ejection opening in it is visible. The barrel is usually browned, but sometimes also bare, nickel-plated, segregated or gilded. The color corresponds to the visible one Running surface, if it is not bare, usually the Color of the sled surface. It is also visible The running surface is usually smooth.

According to claim 10, the change barrel of Conversion kit according to the invention compared to the original run different and to that of Slides as contrasting as possible surface design on, knurled, blued, galvanized with non-ferrous metal or painted. The purpose of this configuration is to Protect a constantly visible and sometimes also tangible To indicate that the weapon is just on weak Cartridges converted and unlocked.

It has surprisingly turned out that the Loads that result from the accidental firing of a strong Cartridge from the unlocked variant on all stressed parts occur, become significantly smaller, if instead of a steel handle, a handle Plastic is used. Probably reinforces that Plastic material of the handle the damping effect Arrangement of compressed exchange locking spring and Elastomer sleeve.

According to claim 11, the invention also includes a Weapon system that consists of a conversion kit from the above in Connection with claims 4 to 10 described type and the associated locked self-loading pistol, which may have been modified to match the conversion kit can. For example, the closure weight can be optimized that both the unlocked and the locked version of the self loading pistol for best Results.

Fig. 1

eine bekannte, verriegelte Selbstladepistole im Längsschnitt,

Fig. 2

Lauf und Pufferstange der Selbstladepistole der Fig. 1, und

Fig. 3

Wechsellauf und Austausch-Pufferstange mit einer Elastomerhülse eines Umrüstbausatzes zum Umrüsten der Pistole der Fig. 1 in eine unverriegelte Selbstladepistole.

The invention is explained in more detail below using an exemplary embodiment and the attached schematic drawing. The drawing shows:

Fig. 1

a known, locked self-loading pistol in longitudinal section,

Fig. 2

Barrel and buffer rod of the self-loading pistol of Fig. 1, and

Fig. 3

Exchange barrel and exchange buffer rod with an elastomer sleeve of a conversion kit for converting the pistol of FIG. 1 into an unlocked self-loading pistol.

1 shows a known locked self-loading pistol, the one for shooting normal, strong, and strongest Cartridges, here the cartridge is set up 9 mm parabellum. This self-loading pistol is already in the multiple DE 41 09 777 C (HECKLER & KOCH) mentioned in detail have been described. The following presentation of this Gun is therefore kept short. Complementary expressly referred to DE 41 09 777 C.

The gun has a handle 1 made of plastic, one in this loosely inserted barrel 3 and a carriage 5. On the top of the rear end of barrel 3 is a Locking projection 7 formed in the shown locked position in the discharge opening (no Reference number) of the carriage 5 engages and this firmly connects to barrel 3.

At the bottom of the rear barrel end 3 is a guide 9 formed with inclined surfaces.

The carriage 5 is supported from the front on one Closing spring 19 from which led around a buffer rod 11 is. The rear end of the Pufferstangee 11 sits under the Guide 9 is designed as a counter-guide 13 and has accordingly complementary inclined surfaces to the guide 9.

On the underside, the counter-guide 13 has an elongated Recess 15 in which a cross pin 17 with play intervenes. The cross pin 15 is attached to the handle 1, so that the counter-guide 13 and thus the buffer rod 11 can move to a limited extent in the longitudinal direction. To The purpose of assembly is the cross pin 17 on the handle 1 detachably attached.

A buffer spring (no reference number) presses the Buffer bar 11 to the front. The buffer spring sits in one Section of the handle 1, which resembles a hole that towards run 3 is open lengthwise. The buffer spring is with its rear end on a shoulder 21 of the handle 1 supported, which is a receptacle for the rear Buffer rod end at least largely surrounds.

The barrel 3 and the slide 5 move when the shot is fired first over a locking section (about 3.5 mm) together backwards, both by the intervention of the Locking projection 7 in the carriage 5 firmly stay connected. Then the guide 9 runs with their inclined surfaces in the counter guide 13, engages there in their sloping surfaces and becomes oblique to the rear and led below. Here, the locking projection 7 is moved down and thereby gives the carriage 5 free. This can now in the usual way Carry out through-loading movement.

After the run 3 with its guide 9 in the opposite guide 13 has intervened, he takes this and thus the Buffer rod 11 further to the rear, against the Effect of the buffer spring. This common backward movement of barrel 3 and buffer rod 11 is by the stop front end surface of the recess 15 against the cross pin 17th limited.

The barrel 3 and the buffer rod 11 are still in Fig. 2 shown enlarged; the closing spring 19 and the Buffer springs are omitted.

3 is a conversion kit according to the invention for Gun shown in Fig. 1, on the same scale as in Fig. 2. This conversion kit consists of a Exchange run 3 ', an exchange buffer rod 11', one Exchange closing spring 19 'and an elastomer sleeve 24.

If you compare Figures 2 and 3, you can see without further the changes compared to the known Original parts have been made. The parts of the Conversion kit are hereby from the original parts of the known self-loading pistol of Fig. 1 well distinguishable. - In Figure 3 designate all indexed Reference numerals those parts of the conversion kit that compared to the original parts with the same reference number, however without an index, are modified.

On the back of the interchangeable barrel 3 ' Locking projection 7 of the original barrel 3; instead there is a flattening 7 '. So there can be no locking engagement with the carriage 5 take place. The Intervention training 9 'and the counter training 13' are so designed and sit in one another so that a mutual Relative movement is no longer possible. The recess 15 ' is adapted to the contour of the cross pin 17 (Fig. 1) and forms a pin receptacle so that the buffer rod 11 ' cannot move lengthways.

If the change barrel 3 'with the handle 1 and Carriage 5 of the self-loading pistol of FIG. 1 assembled is clearly seated firmly in the handle 1. Sitting he with his intervention training 9 'in the counter training 13 'of the buffer rod 11'. Even the buffer rod 11 'sits firmly with its pin holder 15' on the cross pin 17 and thus immovable relative to the handle 1.

The elastomer sleeve 24 encloses the replacement closing spring 19 'narrow from the outside and is initially on anywhere within their length. she is formed from steel strip so that their individual turns Sit flat on top of each other when the replacement closing spring 19 'is fully compressed.

When the shot 5 moves, but not the Change barrel 3 'to the rear. The latter remains in his Location. The carriage 5 presses the replacement closing spring 19 'together and pushes the elastomer sleeve 24 backwards into the hole of the Grip piece 1. At the end of the return of the carriage 5 are all turns of the replacement closing spring 19 ' compressed, and the carriage 5 sits on at the same time the compressed exchange closing spring 19 'and the Elastomer sleeve 24 on. This in turn sits on the heel 21 of the handle 1, which is the receptacle for the Buffer rod 11 or 11 'surrounds.

The elastomeric sleeve 24 is inflated and enters Frictional engagement with both the inner wall of the above Hole as well as with the outer surface of the compressed Replacement closing spring 19 '. The elastomer sleeve 24 conducts all the forces introduced from the slide 5 large area over the inner wall of the hole and the above Paragraph 21 in the handle 1. At the same time, too a portion of these forces over the compressed Closing spring 19 'and the buffer rod 11' in the cross pin 17 and introduced into the handle 1 via this.

As I said, you get the unlocked according to the invention Modification of the self-loading pistol by making it parts shown in Fig. 3 with the remaining parts, assembles in particular the handle according to FIG. 1. Becomes with this recoil-free pistol accidentally an extreme strong cartridge fired, then the carriage 5 opens very quickly and may bounce very quickly back again. In no case do the sledges 5 and especially the handle 1 damage. The recoil energy is namely large and damped in the handle 1 initiated this in turn because it is made of plastic exists, the impact returns "softer" than about one Hardened steel handle.

Otherwise, the modified, recoilless self-loading pistol weak cartridges, too Shotgun cartridges, impeccable, as well as normal loads.

The interchangeable barrel 3 'can be at least in the area of it Flattening 7 'be strikingly colored. This will Protect yourself when you look over the gun the modification of the gun in accordance with the invention set when he is already ready

It should also be noted that obviously the following is not is possible: for example only the change barrel 3 ', but not at the same time to install the other parts of Figure 3, but instead the corresponding remaining parts of the Fig. 2 maintain. Nor can the elastomer sleeve 24 may be left out by mistake as they are combined with the Exchange closing spring 19 'captive on the buffer rod 11 'is attached.

1 and the interchangeable parts of the 3 together form the weapon system according to the invention, in which the carriage 5, if necessary, opposite the commercial pistol of FIG. 1 can be optimized in weight can.

Claims (12)

1. A self-loading pistol having the following features:

   a) a grip (1),

   b) a barrel (31) securely supported thereon,

   c) a bolt (5) which is disposed at least to some extent behind the barrel (3') and can move in its longitudinal direction between a front closed position and a rear open position,

   d) a multi-thread, helical main spring (19'), which forces the bolt (5) into the closed position, but in its open position is compressed so that all its threads lie one on top of the other at least to a large extent, and

   e) the main spring (19') is tightly surrounded from outside by a case (24) made of elastomer material, the length of which roughly corresponds to the length of the compressed main spring (19').
2. A self-loading pistol according to Claim 1, characterised in that the main spring (19') is made from a flattened wire or steel strip having an oblong rectangular cross section, and in that the longitudinal sides of the cross section are lie one on top of the other when the main spring (19') is compressed.
3. A self-loading pistol according to Claim 1 or 2, characterised in that the case (24) is seated in a bore constructed in the grip (1).
4. A conversion kit for a locked self-loading pistol, comprising: a grip (1), a bolt (5) a moveable barrel (3), which can be brought into secure connection with the bolt (5), and a helical main spring (19), wherein the conversion kit comprises an interchangeable barrel (3') which can be mounted without engagement with the bolt (5) and a case (24) made from elastomer material which tightly encloses the main spring (19) or an interchangeable main spring (19') from outside, the length of which roughly corresponds to the length of the compressed main spring (19, 19').
5. A conversion kit according to Claim 4, characterised by an interchangeable main spring (19') made from a flattened wire having an oblong rectangular cross section, so that the longitudinal sides of the cross section lie one on top of the other when the main spring (19') is compressed.
6. A conversion kit according to Claim 4 or 5, characterised by an interchangeable bolt, the mass of which differs from that of the bolt (5).
7. A conversion kit according to one of Claims 4 to 6, for a locked self-loading pistol comprising a barrel (3), which engages via its rear end with at least one locking projection (7) in a slide (5) forming the bolt and which beneath its rear end comprises a guide (9) which enables the backward and downward movement of the barrel (3) over a locking path, characterised in that the interchangeable barrel (3') comprises at its rear end: at the top a continuous face (7') which is not in engagement with the slide (5), and at the bottom an engagement formation (9'), which can be fixed to the grip (1').
8. A conversion kit according to Claim 7, for a self-loading pistol which comprises a buffer rod (11) which lies beneath the barrel (3) and is longitudinally moveable in relation to the grip (1), and which passes through and bears the main spring (10) and a buffer spring and which is constructed to engage in the guide (9) of the barrel (3), characterised in that an interchangeable buffer rod (11') is provided with an interchangeable main spring (19'), which can be immovably fixed in the grip (1) and is constructed for fixed engagement in the engagement formation (9') of the interchangeable barrel (3').
9. A conversion kit according to Claim 7, for a self-loading pistol, the buffer rod (11) of which comprises an oblong recess open on either side over its length to enable its longitudinal movement, through which a removable cross pin (17) having a round cross section passes, characterised in that the interchangeable buffer rod (11') comprises a pin seat (15') which is complementary to the cross section of the crosspin (17).
10. A conversion kit according to one of Claims 4 to 9, characterised in that the interchangeable barrel (3') comprises, at least in the region of its outer surface which is visible from outside, especially through the ejection opening of the bolt (5), a colouration which differs from the surface colouration of the barrel (3') and/or a surface formation.
11. A weapon system, whose components comprise:

    a locked self-loading pistol according to the precharacterising clause of at least one of Claims 4 and also 7 to 9 and

    a conversion kit according to at least one of Claims 4 to 10.
12. A weapon system according to Claim 11, in which a common grip (11) made from plastic is associated with the two components.

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