Among the wide variety of wind weapons, the MP-512 air rifle has gained particular popularity. This is due to its moderate price and a number of advantages that allowed this product of the Izhevsk Mechanical Plant to take pride of place among similar imported samples.
Owners can appreciate the qualities of this wind weapon, using it for its intended purpose - carrying out recreational and sports shooting at long distances. Today this has become possible due to the presence of such an element in the design of the rifle as a gas spring for the MP-512.
An alternative to a regular spring
The gas spring for MP-512 is an optimal alternative to the outdated standard coil spring. The owners noted that the use of this spring provides a multiple increase in the resource of the weapon. This is explained by the fact that, like all gas springs, the HP on the MP-512, unlike standard metal products, even after a longoperation remain with the same coefficient of rigidity, as a result of which they are not subject to shrinkage. Sooner or later, all owners of rifles with classic twisted standard springs have to face this problem.
What is the device?
Pneumatic spring for MP-512 is a device, which is a closed cylinder, inside which high pressure is formed with the help of injected gas. The design of gas springs is non-separable, adjustable. It is mounted in place of the standard coil spring.
There is a rod (plunger) inside the cylinder, which is set in motion under the influence of gas pressure to expand. One end of the cylinder has a welded steel plug. Manufacturers use oil as a lubricant, which is poured into the cylinder. The body contains a polyurethane gasket that is installed in the cylinder after filling with oil.
Gas is pumped through the stem collar. For injection, manufacturers of similar products intended for blowguns use nitrogen. This gas is considered the best option for air rifles. This product is purchased already filled. The injection procedure is carried out by manufacturers at a temperature not lower than twenty degrees. The pumping pressure is 120 atmospheres. Special components available in the design of gas springs allowowners themselves to fill with oil and regulate by bleeding the pressure in the cylinder. Its weight is 100g, the total weight of the GP is 150g.
Among the large number of manufacturers involved in the manufacture of gas springs for air rifles, judging by user reviews, Nitro products have gained particular popularity.
How does a GPU work?
Under the influence of compressed gas, the plunger located inside the cylinder, moving in the longitudinal direction, creates a force effect on the piston. When a platoon is made, the rod is pressed into the cylinder, and when fired, it is pushed back. HPs filled with gas (80% nitrogen) do not have bullet velocity drops when firing, as is often the case in air rifles with conventional coil springs.
Nitro Pneumatic Benefits
- The gas spring for the MP-512 Nitro is widely used when there is a need to increase the power of this air rifle. Such weapons can be used not only for recreational shooting. 140 meters per second is the muzzle velocity of airguns that have a standard coil spring. For the MP-512, it is possible, through the use of Nitro products, to increase the muzzle velocity to 240 meters per second. The power of the rifle allows it to be effectively used as a means of self-defense.
- The gas spring for the MP-512 Nitro allows you to keep this air rifle cocked for extended periods of time.
- Tactic althe technical characteristics of the gun remain unchanged even when carried in the cocked position.
- Provides recoil reduction.
- The resource of the rifle increases five times.
- Firing improves accuracy.
To increase power on the market, in addition to gas springs, there are classic twisted reinforced ones, which differ significantly from standard springs for wind guns.
Reinforced steel spring "Magnum" for MP-512. TTX
- Spring-piston products.
- Length is 275mm.
- Product diameter - 18 mm.
- Made from 2mm wire.
- Consists of 34 turns.
- Manufacturer - Izhmash.
- Country - Russia.
- It is recommended to replace a worn spring together with a cuff.
Reinforced Magnum spring for MP-512, MP-514, IZH-22, IZH-38, PRS and PRSM.
How is it different from the standard counterpart?
An alternative to standard springs, as well as modern nitrogen-fueled products, is the steel double spring for MP-512, reinforced with an internal insert (additional spring). The presence of an additional spring in the design has a positive effect on the power of the gun - it increases by 25%. From twenty meters, a lead bullet of 4.5 mm caliber is capable of penetrating a centimeter sheet of plywood, which is impossible with a standard coiled spring.
Standard spring provides bullet flight speed of 140-150 m/s. 185 m / s - this speed indicator is achieved equipped with a softand elastic polyurethane cuff double spring for MP-512.
Features
- The length of the mainspring is 245mm.
- Diameter -19 mm.
- The coils are made from 3 mm thick wire.
- The number of turns in the outer spring is 34.
- The length of the additional spring (insert) is 250mm.
- Insert diameter - 12 mm.
- Wire thickness - 1.6 mm.
- The number of turns is 54. Of these, 10 pieces are face.
- Plastic, nylon and polyurethane are used in the production of cuffs.
Reinforced double insertion spring uses reverse winding technology. This will prevent possible coil snagging during compression.
Springs are sold as a set (main and additional) or separately. You can purchase this product by ordering online.
How to use gas springs correctly?
- After eight thousand shots, the blowgun needs an oil change and a boost in pressure. This can be done at MOT - (maintenance), after which an assessment of the degree of deterioration of pneumatic weapons will be given.
- A rifle should be taken for inspection if it has an oil leak.
- The rod and cylinder of gas springs should be protected from mechanical damage.
- All GPUs are very dependent on temperature. It is undesirable to use them at high temperatures, since hot air increases the pressure inside the cylinder,consequently, the power of the weapon also increases. This can have a bad effect on the accuracy of hits. At sub-zero temperatures exceeding 5 degrees, stuffing box seals in the gas spring lose their tightness. This entails bleeding the gas in the cylinder. In the above extreme situations, experienced owners and fans of airguns recommend not to use HPs, but to temporarily replace them with conventional ones made of wire.
Gas springs are not subject to shrinkage, have a long service life. The key to a long uninterrupted service of the GPU is the strict adherence of the owners to the instructions and recommendations of specialists for their use.
