Air rifle IZH-38 - design features of the weapon


Brief overview of the IZH-38 air rifle

The single-shot spring-piston rifle is equipped with a rifled steel barrel. Such weapons are designed to fire using lead bullets. At the moment of firing, their initial speed varies between 150-180 m/s.

Cocking is done by breaking the barrel. In this case, the breech opening opens to allow manual loading of the bullet. Thanks to the presence of an automatic safety lock, the trigger is blocked. As a result, we can talk about maximum safety when operating the rifle.

The front sight of such a weapon has a closed design. Among other things, she is motionless. The standard position of the rear sight can be adjusted in vertical and horizontal directions. This is made possible by the presence of micrometric screws. You should also focus on the ability to adjust the length of the aiming line.

During assembly, all metal parts first undergo an oxidation procedure. When making the forend, they resort to the use of plastic and wood. It should be noted that to resolve this issue, it is most advisable to use hardwood.

How to disassemble the MP-512 air rifle?

This procedure is performed as follows. First of all, use a Phillips screwdriver to unscrew the screws. Two of them are located on the side of the stock, and one is located near the trigger near the guard. Then the “air blower” is turned towards itself, the back is pressed against the board and the “pneumatic air blower” is turned counterclockwise. This is necessary so that the pin pops out of the groove and the spring is released. Next, the contents of the compressor are removed, the rifle is broken and the screw that holds the barrel is unscrewed. The pin is removed, with the help of which the sear and safety lever are fixed, which is then removed from the trigger (SK).

Small parts are placed in a box. After cleaning and lubricating, the airgun is assembled. More on this below.

Specifications

CharacteristicsIndicators
Caliber (mm)4.5
Shot speed (m/s)150
Magazine capacity1
Weight, kg)2.8
Size(mm)1050
Energy sourceSpring
BulletsLead bullets
MaterialMetal, plastic, wood
Power (J)Up to 25 J
Barrel typeSteel, rifled
Trigger typeAdjustable
FuseAuto
SightsFront sight and rear sight
ManufacturerRussia
Approximate price, rubles4200

Characteristics of the IZH-38 aircraft

The IZH-38 rifle is one of the best examples of Soviet weapons. The air gun absorbed all the engineering successes of that time regarding the creation of weapons of this type.

ParameterMeaning
rifle weight2.8 kg
rifle length105 cm
barrel length45 cm
weapon weight2.8 kg
caliber4.5 mm
departure launch speed120-130 m/s
piston stroke62 mm
ammunitionlead bullets
magazine capacity1
shot frequency3-4 per minute
power7.5 J
trigger pull2-3 kg

Design features


Diagram of the IZH-38 rifle

The IZH spring-piston action rifle has good performance characteristics. This state of affairs is due to some design features of the product. For example, pushing a bullet out of a barrel is carried out using a stream of compressed air. The appearance of such air masses is due to the movements of the piston in the cylinder under the action of a spring, which occur at high speed.

The design features of the rifle allow you to adjust the sight in the vertical and horizontal directions. Resolving this issue becomes possible thanks to the presence of adjusting screws.

Rough adjustment of the sight in the horizontal direction can be done by moving the base of the rear sight relative to the frame.

The presence of a special locking mechanism increases safety when handling the IZH-38 air rifle.

The spring acts as a source of energy here. It can only be used under certain temperature conditions. In this case, temperature indicators in the range from -1 to +50 degrees are relevant.

The size of the rifle barrel with a total weapon length of 1050 mm is 450 mm. The stock is made using plastic and wooden elements. Shotguns with plastic stocks have minimal weight.

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Assembly and disassembly

If it is necessary to carry out work related to cleaning the weapon, it may be necessary to disassemble the rifle. It is very important to control the condition of the barrel rifling - they must be visible. In addition, the inside of the trunk should not contain dark spots. Wooden elements should not contain characteristic chips and cracks in the area of ​​the side fastening screws.

Disassembling the rifle begins with detaching the iron from the stock. To do this, you need to unscrew the two side screws. Another fastening element is located in front of the trigger guard.

After this, you should remove the barrel and rod from the frame guide. First, press the safety lever a little. To make disassembling the trigger mechanism somewhat easier, you must first remove the locking pin of the block.

Quick disassembly and assembly of the rifle on video:

At the final stage of disassembly, the spring and piston are removed. Assembling the weapon is carried out in the reverse order. When solving this issue, you should never forget about installing the safety lever.

Maintenance

5.1. Follow these rules to improve the longevity of your rifle:

1) do not fire the rifle empty, without bullets;

2) do not use various objects for shooting instead of bullets that are not intended for use in pneumatic weapons;

3) to prevent breakage of the piston screw 6 (Fig. 3), it is recommended to tighten it after every 500-1000 shots.

5.2. The rifle should be disassembled only for prevention or troubleshooting in the following order (Fig. 3):

1) unscrew the stock screws 14 and 19, separate the stock 13 {or screws 33 and 36 and stock 38; rice. 2);

2) knock out the pin of the block 12;

3) rest the rifle securely on the rear end of the receiver 7 in the stand and carefully check the trigger block 11, making sure that the fixing pin on the block comes out of the receiver socket. Separate the trigger box, resisting the action of the mainspring 9.

Note. Do not disassemble the rifle while holding the receiver suspended, as in this case the trigger block, sharply ejected by the spring, can cause injury.

4) remove the mainspring, rod 10 and piston 8;

5) unscrew the locking screw and then the barrel axis 3, having previously turned the barrel around the axis by a certain angle;

6) separate barrel 1 with cocking lever 18 and hinge 21 from the receiver.

5.3. Reassembling the rifle must be done in reverse order.

5.4. During the assembly process, do not allow the cuff to be damaged by the groove of the receiver.

5.5. When the bullet's flight speed decreases, which can be judged by the decrease in its performance, it is necessary to remove the cuff 20 (see Fig. 3), soak it in mineral oil and put it back in place, securely securing it with a screw. Replace the cuff if the defect persists,

5.6. If an air leak is detected when firing between the breech of the barrel and the receiver, it is necessary to replace the barrel gasket 4 (see Fig. 3).

5.7. When the bullet's flight speed decreases, if the piston and barrel seals are in working order, the mainspring is replaced.

5.8. In order to avoid the spring from recharging when storing the rifle, the piston should not be cocked. Store the rifle in a dry place.

5.9. During long-term storage without use, it is recommended to lightly lubricate the metal parts of the rifle with gun grease.

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Repair and replacement of parts


Parts of the air rifle IZH-38

Carrying out repair work may present certain difficulties. It is necessary to know very well all the details of the product design so that a banal replacement of parts does not turn into an insoluble problem.

For preventive purposes, it is recommended to wash rifle parts with special solutions. This will have a positive effect on the performance characteristics of the product. If necessary, you can resort to replacing the leather cuff. It is recommended to soak it well with gun oil first.

To improve the performance characteristics of the rifle, the standard spring can be replaced with a more powerful option. It's best if it's double. In this case, one spring is placed inside the other. It should be noted that in this case it becomes necessary to remove the piston weighting material. In order to reinstall it, you will have to shorten the inner spring.

The number of owners of this rifle is constantly increasing! We are talking about a five-shot air rifle IZH-61, equipped with a fixed steel barrel with rifling. This variation of the air rifle is characterized by compact dimensions and minimal weight. You can find out how to improve your IZH-60 air rifle here. All about the upgrade and modernization of this model and its features.

What tools might you need?

Before you begin the disassembly procedure, stock up on the following:

  • Phillips screwdriver.
  • With a hammer.
  • A drift with a diameter of 0.4 cm. If you don’t have one, use a nail. It will be most convenient for you to work with a “hundredth”.
  • Wooden plank.
  • An empty box. You will put small parts in it so that they do not get lost.

If all the necessary tools are prepared, but you do not know how to disassemble an air rifle, follow a certain algorithm of actions.

Rifle tuning

One of the significant advantages of the rifle is the ability to upgrade the weapon. So, to increase the initial speed of a bullet, it is necessary to increase the existing volume of the combat cylinder. This result can be achieved by lengthening the space for the piston to withdraw, which will lead to an increase in the distance to the point of attachment of the cocking lever in the receiver block.

To resolve this issue, it is necessary to disassemble the rifle and independently make an additional part that can transfer the cocking force from the barrel to the pusher. The final size of this element must be at least 5 mm larger than the old part.

Tuning and strengthening of the IZH-38 air rifle is shown in the video:

The material for the manufacture of such a part can be steel, the thickness of which is 3 mm. Such an element should contain a small recess. Thanks to this, it is possible to achieve an increase in the barrel stroke when cocking.

Considering that the piston hook will extend beyond the realized groove in the cylinder body, it is necessary to additionally drill a new hole for the pin in the trigger well. After carrying out such actions, there will be no difficulties with its fastening.

At the final stage, it is necessary to assemble the rifle and install a standard spring made of wire with a diameter of 2.8 mm. If you follow these recommendations, it is quite possible to count on a positive final result.

Advantages and disadvantages

The IZH-38 air rifle is an affordable product for a fairly wide range of consumers. This is precisely one of the main advantages of this variation of weapons. Here we should add the possibility of upgrading the rifle. As a result of tuning, you can achieve an increase in the power performance of the product.

Given the minimal recoil when shooting, various variations of sighting devices can be installed on such a rifle. The small dimensions and extreme compactness of the weapon greatly facilitate its transportation.

The presence of a rifled steel barrel ensures maximum bullet range.

Among the shortcomings of the model, attention should immediately be focused on the single-shot nature of the weapon. This fact makes the rifle not entirely practical. In addition, the need to constantly break the barrel leads to loosening of the axial bolt. All this is fraught with a decrease in shooting accuracy.

The presence of a high front sight can cause certain difficulties when aiming. You should also focus on the difficult descent. Firing may require considerable physical effort.

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