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HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18)
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 2
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 3
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 4
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 5
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 6
HR556 10" S-HPA (Black) HPA Airsoft Replica (NP-18) - Image 7

HR556 10″ S-HPA (Black) HPA Airsoft Replica (NP-18)

SKU : ASH-111548
Now available from : £595.00

2 in stock

Valid Defence

Please Note – a valid UKARA or DEFENCE is required in order to purchase any weapon. If you are selecting the Two-Tone option below please enter ‘TWOTONE’ in the box below. Please check Terms and Conditions for two tone.

Two Tone Option

I Have a Valid Defense I Need My Gun Two-Tone Blue +£15.00 I Need My Gun Two-Tone Green +£15.00 I Need My Gun Two-Tone Red +£15.00
Description Delivery Returns

Hop-Up Adjustable
Materials Aluminum, polymer, steel
Supplied Magazine 190R Mid-Cap
Other Info/Specs HPA system: MechLabs XX Mod
Connector Type: US-QD

Mechanical HPA operating platform
10″ rifle configuration
MechLabs XX-Mod mechanical HPA engine
T6 aluminium and reinforced polymer receiver set
Receiver alignment designed specifically for the mechanical HPA system
Aluminium lower handguard
M-LOK interface system
4 M-LOK slots at 3 and 9 o’clock positions
5-slot lower accessory rail section at 6 o’clock
20mm flat-top for optic attachments
Full-auto firing capability
Battery-free operation
No ETU system required
Plug-and-play HPA functionality
Slim and lightweight external design
Adjustable performance tuning system
Adjustable travel distance
Adjustable air consumption
Adjustable RPS settings
Designed for easy maintenance access
Made in Taiwan

Long Description
The Airsoft Helden HR556 10″ Black S-HPA is a mechanically operated HPA airsoft rifle platform developed from years of direct player interaction, event feedback and real-world gameplay experience gathered through Airsoft Helden events across Europe.

Rather than focusing on electronics-heavy systems or complicated setup procedures, the HR556 was designed around a clear philosophy: dependable mechanical performance, efficient HPA operation and simplified maintenance. The platform removes the need for batteries and electronic trigger systems, allowing players to connect their HPA setup and focus directly on gameplay.

At the centre of the system is the MechLabs XX-Mod mechanical HPA engine, developed to provide consistent firing performance with user-adjustable tuning options. The system supports travel distance adjustment, air consumption tuning and RPS configuration, allowing players to fine-tune the rifle around their preferred shooting characteristics while maintaining a mechanically driven operating system.

The receiver set combines T6 aluminium with reinforced polymer construction, specifically engineered around the alignment requirements of the mechanical HPA engine. This construction approach helps maintain structural stability while keeping the platform slim and lightweight for practical use during longer gameplay sessions.

The aluminium lower handguard features an integrated M-LOK mounting system with four M-LOK interface positions at the 3 and 9 o’clock sections, alongside a 5-slot lower accessory rail at the 6 o’clock position. This layout allows users to configure grips, lights and additional accessories while maintaining a clean and streamlined external profile. The 20mm flat-top rail provides plenty of real-estate for game enhancing optics.

Airsoft Helden positions the HR556 as more than simply another rifle release. The platform was shaped through direct community involvement, player testing and continuous development feedback throughout the prototype phase leading into its official launch at IWA 2026. The result is a mechanical HPA platform designed around practical airsoft use, serviceability and adaptable field performance.

Brand Statement

Airsoft Helden is one of Europe’s leading airsoft event and community brands, built around immersive gameplay, player-driven experiences and real-world field insight. With over 14 years of involvement in the airsoft industry, Airsoft Helden combines large-scale events, community engagement and product development to create equipment and experiences shaped directly by active players and practical gameplay requirements.

Large-scale European airsoft event organiser
Creators of the Dark Emergency airsoft event series
Player-driven product development philosophy
Focused on immersive and realistic gameplay experiences
Strong community and social media presence
Developed through real-world gameplay feedback
Performance-focused airsoft equipment and platforms
Partnership with MechLabs mechanical HPA systems
Emphasis on reliability, usability and field practicality
Designed by active airsoft players for active gameplay

We aim to SHIP your purchase within 2 business days, usually less. If this is not possible, we will contact you as soon as we can. We cannot be held responsible for delays due to the Courier Service or Post Office Royal Mail. Please allow up to 4 days for delivery, depending on your chosen shipping option.

UK Delivery: For details of our shipping charges please view our Shipping Policy.

Please Note: We currently only ship within the UK, we do not ship outside the UK or overseas.

As the delivery is provided via a courier service it is important that you ensure there will be someone available at the delivery location to sign for the parcel. No refund of the delivery cost will be made for failed deliveries where there has been no-one available to accept the parcel.

If you wish to return any items, please contact us either via email (info@urbanairsoftuk.com) or on the phone (01924 899 109)

Returns address:
Fear Masters Entertainment Ltd
t/a Urban Airsoft Store
Exchange Buildings
Exchange Street
Normanton
West Yorkshire
WF6 2AA

* Please note this is our Head Office and Shop.

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01924 899 109
enquiries@urbanairsoftuk.com

Urban Airsoft Mega Store, Exchange Buildings, Exchange Street, Normanton WF6 2AA

    Why choose Urban Airsoft UK

    Price Match Policy

    Here at Urban Airsoft Mega Store, We guarantee to try and match any like-for-like price on any product shown on our online store, subject to T&C's.

    Expert Gun Servicing

    Our on site tech guy The Airsoft Doctor offers custom upgrades, professional repair and servicing, two tone and camo paint jobs.

    Next Day Delivery

    We aim to SHIP your purchase within 2 business days, usually less. If this is not possible, we will contact you as soon as we can.

    Two Tone Service

    Our professional two tone service usually takes up to 3 working days, the spray will cover 51% of the replica.