HPA Full Tune Up – Servicing and Customisation

We do more than install an HPA engine. We optimise the entire replica.

HPA Full Tune Up is a PRIMOREGGIMENTO.COM workshop service dedicated to installing, servicing and optimising HPA systems for airsoft replicas. It is suitable for both AEG-to-HPA conversions and existing builds requiring adjustments, corrections or improvements.

Service price: €120.00.

Every replica is assessed as a complete system, including its mechanics, alignment, BB feeding, hop-up assembly, electronics and pneumatic components. The work is determined by the replica's actual condition and the objectives agreed with the customer.

Features and technical specifications

• Workshop: PRIMOREGGIMENTO.COM
• Service: HPA installation, servicing, configuration and optimisation
• Systems covered: PolarStar, Wolverine, Redline, Mancraft and other compatible conversions, subject to assessment
• HPA engine installation or servicing
• Inspection and optimisation of engine, gearbox, nozzle and hop-up chamber alignment
• Inspection of the hop-up assembly, inner barrel and bucking
• BB feeding and magazine compatibility checks
• Pneumatic sealing and air line inspection
• Wiring and FCU inspection and adjustment
• Configuration of dwell, ROF, firing modes and trigger response where supported
• Operating pressure adjustment
• Ordinary consumables included: grease, basic O-rings, simple small parts and minor routine adjustments
• Testing: chronograph checks and shooting trials at 15 and 60 metres

The specific work is selected according to the replica and the approved quotation. Not every listed operation is necessarily required for each configuration.

When this service is useful

The service is suitable for AEG-to-HPA conversions, existing HPA builds requiring optimisation and replicas experiencing feeding problems, inconsistent shots, power variations, nozzle misalignment, unstable hop-up operation or irregular shot groupings.

It is also suitable for FCU configuration and preparing replicas for airsoft games, tournaments and regular use.

How the service works

1. Acceptance: the customer brings the replica to our store. We carry out an initial assessment, discuss the requested work and open an internal service record.

2. Workshop queue: jobs are handled in order of arrival, without appointments.

3. Diagnostics and quotation: when the replica reaches its turn, we disassemble and inspect it. Based on its actual condition, we prepare one or more quotations. No work begins without the customer's approval.

4. Servicing and testing: we carry out the agreed operations, adjust the configuration and verify its operation.

5. Collection: once testing is complete, the customer is notified that the replica is ready.

Power output and shooting tests

The replica is adjusted to the agreed power output, up to a maximum of 0.99 J. For tournaments or playing fields using non-professional chronographs, we generally recommend a configuration around 0.94 J to allow some margin for possible measurement differences.

Trials on our indoor 15-metre and 60-metre ranges allow us to assess BB feeding, consistency, accuracy and shot groupings, in addition to chronograph measurements.

Price and conditions

The €120.00 service fee includes HPA Full Tune Up labour and ordinary consumables.

HPA engines, FCUs, air lines, fittings, regulators, batteries, hop-up assemblies, inner barrels, buckings, specific replacement parts and requested upgrades are quoted separately.

Customer-supplied components may be used subject to compatibility checks. Product warranties for items purchased from third parties remain subject to the terms applicable to those purchases. PRIMOREGGIMENTO.COM is responsible for the workshop work, installation, configuration and testing it performs, without prejudice to mandatory liabilities under applicable law.

Frequently asked questions

Why can an HPA replica have feeding problems even when the engine works?

Because feeding also depends on nozzle alignment, proper fit with the hop-up chamber, magazine compatibility and operating parameters. Diagnostics help identify the cause before carrying out corrective work.

Is replacing the HPA engine necessary to improve a replica?

Not necessarily. Many issues arise from installation, configuration or mechanical alignment. Replacement is proposed only when appropriate for the replica's condition and the customer's objectives.

Are FCU settings the same for every system?

No. Dwell, rate of fire and other parameters must be adapted to the engine, platform and functions actually supported by the control unit.

A personalised service, from diagnostics to final testing

HPA Full Tune Up is performed exclusively at the PRIMOREGGIMENTO.COM technical workshop. The value of the service lies not only in the components used, but in the expertise, attention to component fit and complete system tuning required to achieve the best possible balance between accuracy, consistency and reliability.