Double Bell L119A2 Style Neptune SAS (Metal - Black - 41) with Pre-Installed Wolverine INFERNO Gen 2 Engine, Spartan Board & FCU Battery

Converting a specialized military replica like the L119A2 into a high-performance HPA system usually requires technical expertise, custom nozzle setup, and complex wiring modifications. The Double Bell L119A2 Neptune SAS HPA Rifle eliminates all the hassle, arriving fully assembled and expert-tuned with the industry-leading Wolverine INFERNO Gen 2 HPA System.

Wolverine INFERNO Gen 2 Engine & Hybrid Technology

At the heart of this iconic build lies the Wolverine INFERNO Gen 2, world-renowned for its single-solenoid architecture and independent nozzle movement. By combining the pneumatic efficiency of open-bolt mechanics with the feeding accuracy and hop-up stability of closed-bolt designs, the INFERNO Gen 2 ensures precise nozzle positioning before every shot. The result is exceptionally consistent velocity, laser-tight groupings, and maximum gas efficiency out of every tank fill.

Authentic UKSF Styling & Integrated Spartan Control

The Double Bell 41 platform captures the distinct ergonomics of the L119A2, featuring a monolithic-style full-metal upper receiver, integrated rail system with key interface cuts, ambidextrous controls, and a heavy-duty lower receiver. Controlled via the integrated Spartan Board FCU, players can easily tune dwell time, rate of fire, and burst modes directly through trigger inputs—no external programming boxes or complicated phone apps required.

Key Features & Technical Benefits:

• Authentic UKSF L119A2 Design: Full metal construction featuring signature SAS/SBS rail profile and monolithic upper receiver aesthetic.

• Pre-Installed Wolverine INFERNO Gen 2: Premium single-solenoid HPA engine providing exceptional air efficiency and precision nozzle seating.

• Spartan Board FCU Control: Easily adjust dwell, rate of fire, and burst modes directly through trigger inputs.

• Included FCU Battery: Comes supplied with a dedicated LiPo FCU battery to power internal solenoids out of the box.

• Instant Trigger Response: Solenoid-driven activation completely removes mechanical gear delay for instantaneous shots.

• Fully Adjustable Output: Easily adjust FPS and rate of fire through your external HPA regulator and FCU parameters.

Tech Installation & Usage Guidance

To set up, connect the included FCU battery to the Spartan Board wiring harness inside the buffer tube assembly. Connect your high-pressure air line (standard QD fitting) to the lower grip line. Set your external regulator within the engine's recommended operating pressure range (typically 60–120 PSI) prior to firing. Always disconnect the FCU battery when storing the rifle to prevent deep battery discharge.