Semi-automatic hunting rifle MP-155: features reviews

Shotgun MP-153 many believe weapons bestseller. In 2000, when the model was created, it was one of the first guns in the world, works flawlessly with any ammunition, cartridge length of which varies from 70 to 89 mm. The gun to win the market because of the beauty, convenience, reliability and low price. But even such a well-established industry, as the production of weapons, while indelibly leaves its mark. By the end of the 2010s gun MP-153 was morally outdated. He was replaced by a model MP-155, with which we have today, and get acquainted.

BACKGROUND OF

The main reason for the development of MP-155 shotgun is the fact that his predecessor had lost its position in the market. Mass gun MR-153 was on average 3, 5 kg. That was a lot even for the version with the highest caliber 12h89. In the meantime competitors appear gun weighing from 3 1 to 3 4 kg. And among the models with engine inertia automation could even find a version weighing less than 3 kg.

Compared with competitors, gun MP-153 was too big "balance." This concept describes the distance from the trigger guard to the center of mass of the gun and has a direct impact on the convenience of shooting. In addition, models of the 2000s were not sufficient additional options. In particular, the removal of the stock could not be controlled. Positioning the optical sight or transition strips under it simply did not exist. Finally, the last reason for the fall in demand for the gun MP-153 is the fact that it simply become familiar. And competitors meanwhile actively stormed the market with new and new models.

The development of a new model of

In the end, it was decided to develop a new rifle. In late 2010, the corresponding order was issued, and work officially began. Project leader appointed Alexander Usherovicha Dorf. Pre-set of works aimed at studying the various design solutions was conducted. In particular, samples arms were created and tested with different locking methods: with a rotating bolt and an angle of the locking wedge. Also tested were different in construction of a gas engine pulse adjustment assemblies. It is worth noting that the research work began even before the gun MP-153 began to lose its position as gunsmiths knew that this moment would come one day.

Requirements

The new rifle was not only deprived of all the problems of its predecessor, but also to keep its strengths, namely: reliability, flexibility (the ability to work with ammunition of different calibres), the ability to install a collapsible stock and pistol grip and finally store increase by mounting extension .

Thus, the new model was created on the basis of the previous, proven over the years. At different stages of development involved both experienced and young professionals, among whom was even one girl. Shotgun MP-155 was performed in two variants, under gauges 12h76 and 12h89. In the first case, the weapon was shorter by 11 mm and it is easier to '90 This is achieved thanks to Shutter shortening, boxes, frames, and some other details.

trigger

new trigger mechanism (USM) has been designed for the gun, which consists of fewer parts than its predecessor, and performs advantageously polyamide. Such material is used to make shopping in the Kalashnikov assault rifle, so there is no doubt about its reliability. The course of the trigger has been reduced, and the descent he became drier. Due to a larger fuse it has become much easier, as the retainer button, which is necessary for setting the gun on the slide stop and magazine discharging. For easier entering the cartridge chamber, the front part of the tray is designed as a "plug". The trigger mechanism provides security in case of an incomplete trunk lock.

Sights

Arched rib looks much more attractive than vented, and weighs less. Specially developed for her new attachment to the trunk. Tin-lead solder, which is used for fixing ventilated strips, does not provide the required strength of the connection.

Initially the bar was fixed to the barrel by means of welding studs. Stud welded to the trunk, it sets the bar with the corresponding holes, all scald. After the release of the first batch of guns, faced with difficulties when debugging of the production process, gunsmiths returned to a simple soldering with a silver solder. But there has not been without problems. Due to the high temperature solder traces formed in the bore. They are cleaned by means of honing. Instead of aiming a rifle straps can install a simple front and rear sights. Well amateurs more sophisticated devices can without problems deliver optical or collimator sight MR-155.

trunk

The gun can be equipped with four trunks 610, 650, 710 and 750 mm. The barrel may have a cylindrical passage or sedimentary place under replaceable choke constriction. MR-155 equipped with the same seats and choke, like its predecessor.

The main difference between the new trunk is its interchangeability. No one can change the reworking not only choke MP-155, but the trunks. It is only necessary to secure appropriate permissions.

Design features

Automatic gun operated by means of a side of the gas engine. Gas pressure control assembly is located in the piston. Previously, he was placed in the trunk rack. A nut disposed on the piston, which biases the valve spring. The fact that the springs that were released on the same line, may differ in their parameters. The nut is needed in order to achieve the same force of the spring preload. After burnishing gun (first shots 100-200) recommended weaker nut a couple of turns to reduce the speed of rollback moving parts. Clamping nut can also be useful for further adjustment and troubleshooting. Receiver manufactured from aircraft aluminum having superior strength. On top of it are slots with which to establish an optical or collimator sight MR-155, or transitional rail. In the first version of the gun I had two pairs of slots, but they were later combined and introduced at the top of the dihedron box.

The shutter does not have fundamental differences from the older version. Appeared longitudinal valleys are not only a decorative function, but also help alleviate the gun. Extractor in the gun MP-155 axle-free. When using high-quality cartridge with rim ideal form it is not needed.

new features

Shotgun MP-155 has received a number of new features. Now it has a cut-off supply of cartridges, which is located on the left side of the receiver. Trim is designed for easy replacement of cartridges. This feature may be required in the event that you need to make an arrow shot cartridge that is different from the one that is in the chamber.

New gun received retraction control function of the butt in the vertical and horizontal planes. Butt MR-155 symmetrical, without horizontal retraction. From the factory the gun comes with a liner to remove the stock in the right direction. If the shooter left-handed, he can simply rearrange the liner so that the stock was allocated to the left. Also included are two inserts for vertical discharge. One increases the outlet, and the other - reduces. The working range of each of the vertical inserts is 7 mm. Butt plate got a new design, which effectively dampens returns. The gun can be equipped backplate two sizes, the difference in length between which is 1 cm. This makes it possible to increase or reduce the length of the butt.

Handguard MP-155 model is also not without modifications. It received a tapered shape and become narrow towards the muzzle. Now it has a thin cross-section at the site coverage of the hand, for easier retention. For greater strength, the forearm is thickened to the rear. Plant alone produces a left-handed version of the gun. In addition to removal of the left butt it has the reverse order of work and left guard position of the window to eject shell casings. When designing the gun designers tried to make every detail of the most technologically advanced and easy. As a result, the weapon got an ergonomic, easy and visually appealing. Its weight is 3, 05 or 3 to 15 kg, depending on the caliber. In plastic gun harder to 100 grams.

Other modifications

Even at a time when the Izhevsk plant produced active model MP-153, designers have thought about the creation on its base under the gun caliber 20h76. This idea was quickly forgotten, as for the creation of such a gun with an acceptable weight and dimensions would have to carry out a fundamental modernization of the basic version.

The prospect of modification MR-155 model, the caliber of which would be equal to 20 mm, it was set out further in the specification for the gun. Currently working on debugging 20h76 gun caliber are in the final stages. The weight of such modifications will be 2, 9 kg.

In addition, semi-automatic hunting rifle MP-155 was the basis for the shotgun MP-135. The main difference between the model MP-135 of MP-133 was the unification with a gun under consideration. Weight of the pumping model is around 2, 9 kg of a wooden performance. MR-135 model has the same variety as base version. Furthermore, it has options with a barrel length of 510 and 540 mm.

MR-133 model is equipped with a gate delay, that is, after exhaustion of the forearm and ordnance valve blocked in the rear position. To unlock them, it was necessary to press the interceptor. Since the number of potential customers expressed a wish to purchase the shotgun without a slide stop for MP-135 model and this version did.

Outlook

To date, developed a new pistol grip and folding stock. Buttstock, used in the previous model, was functional and reliable. It was based on a similar item with AK-74M. However, for the smooth-bore weapons with recoil, which is much greater than the power of machine-gun, he did not come. The new butt to become more comfortable, including for left-handers. Also, work is underway to create a version of the gun for practical shooting. The fact is that, as shown by tests, retainer button, which is quite satisfied with the hunters, is not suitable for athletes. When fast recharge button can be pressed accidentally, which can lead to loss of time and cool down. These and other minor requirements, developers will take into account in the new version.

Competitors

To understand what are the prospects has a gun MP-155, the characteristics of which we have considered today, it is worth to compare it with the main competitors. Italian guns have excellent ergonomics, excellent technical and combat characteristics and high level of finish. That is the level of finishing in the first place, the Izhevsk plant weapons inferior "to the Italians." But as for performance, reliability and accompanying options, there is a gun MP-155 looks very worthy, even in comparison with the Italian models. It is also important to note that guns, made in Italy, and can cost 50, and 100 thousand rubles, while the Russian weapons several times cheaper.

More complicated things are, if you compare with the Turkish guns Izhevsk. Here the price is quite comparable. Turkish model famous for its high level of finish, which grows from them every year. Meanwhile, Russian guns to stay afloat thanks to the reliability and durability. Time will tell how successful the model MP-155. Izhevsk produces a good weapon, and it is already clear that the guns have all the chances to achieve the same popularity as the MR-153. Now let's learn how to speak the real users of these weapons.

MR-155: reviews

Shotgun generally earned positive reviews. It really is easier and more functional than its predecessor. Accuracy and precision shooting from a gun MP-155, the characteristics of which we reviewed today, it is consistent with its price. Reliability - the main advantage of Izhevsk guns. Complaints causes except that fitting parts, which may differ for different copies of MR-155. Reviews show that many owners do not like the rubber hit tylnik butt, which slides in the garment, and the fact that the rib is soldered only at the beginning and the end.