Yarygin pistol PYA (MP-443 “Grach”) design Vladimir Alexandrovich Yarygin was created by the Izhevsk mechanical plant in accordance with the tactical and technical task of the contest for the new pistol for the army and law enforcement agencies, dubbed “the rook”. TTZ was formulated in January 1991 and later changed repeatedly. Work on the design of the new weapon began in 1993.
Yarygin pistol PYA (MP-443 “Grach”) – video
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Along with the gun was developed and a new cartridge, which was supposed to surpass the breakdown and stopping power of bullets as a domestic 9×18, and NATO 9×19 ammunition. It was decided to focus on improving the cartridge 9×19 (9mm Parabellum). It is supplied under the scheme use of recoil with a short barrel. The operation is ensured by decreasing the breech entering their rectangular projection located above the chamber, the window to eject spent shells of slide and barrel. The reduction takes place in the interaction of the inclined surface of the internal groove in the tide of the breech with the axis of the bolt delay. Frame and the shutter-casing made of carbon steel and the barrel is stainless.
The firing mechanism of a hammer type, double action with automatic staging trigger safety on the platoon. Openly located trigger laterally closed by a back part of the slide to prevent snagging the trigger when removing the arms for clothing or items of equipment arrow. Trigger pull when working in the mode of samutpada is 5.8 kg, and with preliminary cocking – 2.6 kg. Such values are optimal for military weapons, ensuring adequate security in handling a loaded gun. Levers bilateral safety lever placed on both sides of the frame, above the grip. When you turn blocks the trigger in any of its provisions, the trigger, the sear and the breech-casing. The shutter delay lever is located on the left side of the frame. The extractor is also an indicator of a round in the chamber.
The magazine release button, located on the left side of the frame, at the base of the trigger guard can be easily moved to the right side. Box magazine holds 17 rounds with double their location, as well as a two-lane exit. Sights consist of a foresight and a rear sight, pinned in a groove type “dovetail” with the possibility of making lateral adjustments. Front sight and the rear sight is fitted with white inserts to facilitate aiming in low light conditions. The grip the manufacture of plastic. Frame and the shutter-casing is made of carbon steel. The barrel is made from stainless steel by cold forging, and the channel is plated with chromium. Of great importance and spans used in the cartridge 9×19. The main feature and advantage of the new cartridge received index 7N21, is armor-piercing bullet with a steel core, protruding from the shell. The result is a greatly increased breakdown action bullets, which was the main requirement for a new cartridge.
The bullet itself has a mass of 5.4 g., the initial velocity of 450 m/s and energy of 550 j. This cartridge can be used in any modern gun of this caliber, and the GOJ in turn can fire any other cartridges 9×19. Tula ammunition plant and the Novosibirsk plant low-voltage equipment also produce cartridges with a bullet with lead core, having a lower cost than armor. Upon completion of the design work the final version of the gun was ready in 1995. There were several experimental models under the popular U.S. cartridge .40 S&W, however they did not go due to the lack of large customers such weapons in Russia. When debugging samples 40 caliber had any problems with the reliability of supply of ammo, but we managed to solve them by typing in a special design detail – movable feeder.
After much work on possible options of design, numerous improvements and updates, ready the gun on IJMAH-e received the name of MP-443, MP should be read as Latin letters are an acronym for Mechanical Plant (Mechanical plant). However, for official testing of weapons was assigned an index 6П35. On the research polygon of the Ministry of defence of the Russian guns were tested on the resource reliability in normal and difficult conditions (shooting without lubrication, at a temperature of – 50 to + 50 degrees Celsius, in conditions of dust, rain). All during these tests produced about 1500 shots.
Yarygin pistol demonstrated compliance with the most stringent requirements of the armed forces. The FSB praised the fighting qualities of the sample Yarygin. The tests were successful and the gun was given the name PYA (Yarygin Pistol), under which in 2003, it adopted the Russian army and law enforcement agencies. However financial and other constraints do not allow for full-scale rearmament. Currently Yarygin PYA pistols are equipped with only some elite units of the armed forces, special forces of the interior Ministry, the FSB and GRU. From 9 October 2008, the Russian Ministry of internal Affairs is gradually beginning to replace the Makarov pistols on Friday. But, given again the problems with financing and a huge quantity of RM used existing staff and stored in warehouses, re-equipment takes place at a slow pace.
Like any weapon, GOJ has its drawbacks and advantages. Awkward handle does not easily hold. Manually operated fuse complicates the handling of weapons, but with regular training it does not cause any problems. With closed sides the trigger while the gun has no lever decocker, cannot be transferred to the forward position manually. This greatly complicates the handling of weapons. The significant drawback of the design is the lack of decocker with a combat platoon, which has become almost mandatory design element of any modern combat pistols. Sighting devices made in the manner of Western models, are equipped with white dots. The fly is made very wide. This was to speed up the aiming, but rather had a negative impact on accuracy. In General, many of which had experience of shooting from five celebrated mediocre accuracy at a distance of 25 meters. But this applies generally to pistols.
The shutter-casing the translation language is quite tall and massive, causing the center of mass of the gun when its retention is perceived as being above the arms and have a tendency to “drop” weapons. The gun is bulky, heavy and has significant width. The latter circumstance strongly hinders the hidden carrying, and a large mass burden the owner if the gun is worn constantly. The trigger has a long creep of the trigger, but at the same time quite a smooth move. Users noted problems with reliable operation when using cartridges Barnaul machine-tool plant, despite the fact that ammunition Tula cartridge factory guns always worked perfectly. Currently Barnaul ammo with no problems noted due to their increased quality. Incomplete inconvenient disassembly, in comparison with the same RM or the Glock, not to mention full. The disadvantages include the lack of slots for mounting tactical lights and laser sight. Warranty shooting practice spans 4,000 shots, which by modern standards is simply unacceptable.
Employee of the interior Ministry special unit with extensive combat experience in “hot spots” of gun five: “the”Miracle” of domestic weaponry… Although, undoubtedly, the long-awaited type army pistol. Powerful, reasonably ergonomic, with capacious store. But…. I doubt that in Soviet times it would take on Board. The gun is frankly “crude”. Angular, with projecting parts, as if cut down with an axe. Workmanship is appropriate. When deployed ten new sporting pistols ammunition issued for conducting firing training, the two pistols have been sticking to the liners, one a misfire and the shot only after repeated firing.
Equipment stores sharp edge sponges cut fingers, we have to take in hand. If you increase capacity on one cartridge it should be, and move the hole to control the amount of ammo. The holes are located on the right side, and to visually determine the number of bullets necessary to completely pull out of the arm or be left-handed. Move the holes on the left wall of the store or on the back, probably, was not possible. The magazine release button is unprotected, accidentally pressed when wearing – not uncommon. In the best case you can lose the store, at worst to remain in the face of danger with an empty chamber because if you accidentally press the magazine catch button down it departs from the line of disilane and the bolt slips past the cartridge. And the store is kind of in the handle, press the latch… the store Itself should be done by store type APS, with large Windows or by store type PSM to facilitate equipment cartridges.
The shutter delay lever is located close to the fuse and when you click on one of the levers under the finger hits the other. On some relatively new pistols, bolt spontaneously breaks from the gate delay. The rear part of the bolt just did an openwork design. Probably specially made for collecting different waste, unlike PM and APS. The notch in front of the gate is probably a fad, and nothing more. When using this incision the fingers encountered the sharp edge of the front of the frame. Maybe she is used to verify the presence of a cartridge in the chamber, as do the foreign guns? There is a pointer availability cartridge in the chamber. Two-way catch. Good decision. But if you only have a regular right-hand holster, this decision remains unclaimed. Same can be said about the setting on the fuse with the hammer cocked. Completely superfluous function. When removing the gun from the holster, at the same time to cock it no problem. Moreover, the GOJ samosvat on soft and hard on the first shot accuracy is not affected.
That’s what take five is a smooth slope with a slight move of the trigger when you return to the starting position and a quick return to the line of aim after the shot. For fast shooting it is better suited. The similarity between the trigger and Bang the MSM obviously and visibly not even a specialist. Why not make the fuse the same as in PSM design and place it on the gate, providing simultaneous removal of the safety catch and cocking. And close the rear part of the closure from possible clogging with foreign objects. The ledge on the front of the trigger guard for the index finger. Maybe he and increases accuracy – a difference I didn’t notice. Gun throws as well as with a normal grip. And with such a wide bracket, for a normal grip should not have index finger, and the tentacle.
Sights had to do was streamlined in order to prevent the mesh for the clothes or operational holster. The pistol has included only one spare magazine. Regular ammo PST differ from those used in training shooting sports ammunition 9×19, the level of acoustic impact on the shooter, more recoil force and a strong flash when fired. As a result the shooter learns about these features only when using the pistol in combat. When using cartridges PST indoors observed dangerous ricochets that can be fixed by replacing half of the wearable ammunition for rounds with lead cores.
Sights had to do was streamlined in order to prevent the mesh for the clothes or operational holster. The pistol has included only one spare magazine. Regular ammo PST differ from those used in training shooting sports ammunition 9×19, the level of acoustic impact on the shooter, more recoil force and a strong flash when fired. As a result the shooter learns about these features only when using the pistol in combat. When using cartridges PST indoors observed dangerous ricochets that can be fixed by replacing half of the wearable ammunition for rounds with lead cores.
However, Yarygin pistol and has undoubted advantages in comparison with existing now in the army and law enforcement structures PM. The force of bestowal Bang and throw of the gun is considerably less than the Makarov pistol. GOJ has a good intuitive accuracy when shooting offhand. Long, wide front sight and a long longitudinal groove of the rear sight reduces the effect of glare in the process of aiming. The most important advantage of five before Makarov pistol course is a combination of the used cartridge 9×19, which has high penetration and good stopping power bullets, and large capacity store.
Tactical and technical characteristics of the gun of Yarygin PYA (MP-443 “Grach”)
Caliber
9×19
Weight, kg
0,95
Size PYA (MP-443 “Grach”)
Length, mm: 198
Barrel length, mm: 112,8
Width, mm: 38
Height, mm: 145
Cartridge
9×19 mm Parabellum,
9×19 mm 7N21, 7N31
Principles of operation
the recoil barrel with a short stroke
Muzzle velocity, m/s
465 (9×21 mm), 340 (9×19 mm Parabellum)
Sighting range, m
50
View of bunker
shop 18 cartridges;
until 2004 release, 17 rounds
The pistol Yarygin PYA (MP-443 “Grach”) – photo
Smooth-bore gas gun Gletcher Grach NBB – pneumatic copy
Russian military self-loading Pistol Yarygina (PYA ‘rook’, Index GRAU 6П35)
