BRAND AIRSOFT HELDEN
The AirSoft HELDEN HR556 10" S-HPA is a compact and versatile airsoft rifle featuring a construction that combines a T6 aluminium upper receiver with a reinforced polymer lower receiver. The 10" configuration provides a manoeuvrable platform while maintaining a comprehensive technical setup.
The rifle is equipped with an aluminium M-LOK handguard featuring 4 side slots and 5 bottom slots, allowing the installation of compatible accessories. The folding polymer stock features a rubberised shoulder rest and QD sling attachment points.
The S-HPA system uses a mechanical aluminium engine with adjustable RPS, with an operating pressure of 100-120 PSI, a minimum pressure of 80 PSI and a maximum pressure of 200 PSI. The system is also TS Regulator Ready. An aluminium magnetic trigger completes the configuration.
The rifle features an adjustable aluminium TDC Hop Up, a 292 mm 7075 aluminium inner barrel and Dual Profile Flip-Up sights. The outer barrel features a 14 mm CCW thread. BB feeding is handled by a 190-round polymer Mid-Cap magazine.
Main features
- S-HPA system with mechanical aluminium engine
- Adjustable RPS
- Operating pressure: 100-120 PSI
- Minimum pressure: 80 PSI
- Maximum pressure: 200 PSI
- TS Regulator Ready
- T6 aluminium upper receiver
- Reinforced polymer lower receiver
- Aluminium M-LOK handguard with 4 side slots and 5 bottom slots
- Folding polymer stock with rubberised shoulder rest
- QD sling attachment points
- Aluminium magnetic trigger
- Adjustable aluminium TDC Hop Up
- 7075 aluminium inner barrel
- Dual Profile Flip-Up sights
- 14 mm CCW thread
- 190-round polymer Mid-Cap magazine
- Firing modes: Safe, Full Auto
Technical specifications
- Brand: AirSoft HELDEN
- Model: HR556 10"
- Inner barrel length: 292 mm
- Length: 580-785 mm
- Weight: 2103 g
- Colour: Black
- Upper receiver material: T6 aluminium
- Lower receiver material: Reinforced polymer
- Inner barrel material: 7075 aluminium
- Magazine capacity: 190 rounds
- Thread: 14 mm CCW

