HPA (High-Pressure Air) systems are a modern method of propulsion for airsoft guns, using compressed air to fire BB pellets. HPA systems are known for their consistency, reliability and high accuracy. If you're considering making the switch to an HPA gun, it's important to understand what the system entails and what equipment you'll need.

Basic components of the HPA system

Air tank

The air cylinder holds the compressed air needed to power the weapon. These cylinders are usually made of lightweight materials such as carbon fiber or aluminum to reduce weight and improve mobility.

Capacity: the size of the cylinder determines the number of shots you can fire before refilling. Common capacities range between 48 and 68 cubic inches (ci).

Regulator

The regulator is a key component of the HPA system because it reduces the high air pressure from the tank to a lower, usable pressure for the gun. It ensures consistent performance and shooting accuracy.

Types: there are primary regulators that are directly connected to the tank, and secondary regulators for finer control of pressure closer to the gun.

High pressure hose

The hose connects the tank to the regulator and the gun. Hoses are typically made of durable materials that can handle high pressure and are available in various lengths to optimize convenience and mobility.

HPA engine or conversion kit

The HPA engine replaces the original gun drive (spring, electric mechanism or gas system) with the HPA system. These engins can be electro-pneumatic or mechanical, each with unique characteristics.

Examples: popular electro-pneumatic engines include the PolarStar F2 or the GATE Pulsar. Mechanical motors include the PolarStar Kythera or Mancraft.

Magazine adapters (applies to pistols only)

With HPA magazine adapters your airsoft HPA pistol will shoot more accurately, more stable and longer. HPA Adapters also feature a magazine well for standard M4/16 or MP5 magazines, increasing the overall ammo capacity so you can make your secondary weapon your primary.

Advantages of HPA systems

Consistency and accuracy: regulated air pressure ensures stable FPS (feet per second), resulting in more accurate shots.

Customizability: HPA systems allow a wide range of adjustments, including cadence, rate of fire and pressure settings

Reliability: fewer moving parts means less chance of failure and lower maintenance requirements.

Quiet operation: HPA guns are quieter than AEG or gas guns, which is advantageous for stealth actions.

Disadvantages of HPA systems

Initial cost: HPA systems are more expensive to purchase than traditional AEG or gas guns.

Mobility demands: Carrying a tank and hose can limit player movement and comfort.

Air refills: The need to refill the air bottle regularly can be limiting if suitable refill sources are not available.

So what do you need to build an HPA?

(found below in the links to our e-shop)

HPA bottle

Regulator

Hose

HPA engine or conversion kit

Adapter for airsoft magazines

Maintenance and safety

Regular maintenance: cleaning, lubrication and inspection of O-rings and valves is essential to maintain optimum performance.

Safety precautions: follow standard safety guidelines when handling HPA guns, including wearing safety glasses and treating the gun as loaded.

Conclusion

HPA systems are a powerful and customizable choice for airsoft players looking for high accuracy and reliability. Investing in HPA equipment can provide significant benefits if you are willing to manage the initial cost and maintenance.

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