NUPROL Airsoft Gas 4.0

Ultra-high-pressure 300g gas delivering maximum power, strong recoil and stable performance for heavy GBB platforms.

Product Features:

• Ultra-high-pressure formulation
• Designed for heavy rifle and DMR platforms
• Strong recoil and FPS stability
• Silicone-lubricated for seal protection
• Trace additives enhance expansion rate
• Reliable cycling in cold environments
• Supports demanding, high-mass operating systems

NUPROL 4.0 is the most powerful gas in the NUPROL range, engineered specifically for heavy GBB rifles, DMR setups and high-mass slide or bolt systems that demand maximum operating pressure. Delivering authoritative recoil and stable FPS output in even the harshest conditions, 4.0 ensures heavy platforms cycle with confidence where standard gases lose performance.

To maintain reliability under extreme load, the blend incorporates NUPROL’s highest concentration of trace additive expansion technology. This engineered additive package accelerates gas expansion and helps stabilise pressure during long bursts, sustained semi-auto fire or cold-weather use.

Silicone lubrication supports the replica’s seals and valves against the additional operating forces, maintaining long-term performance. For players who push the limits of GBB realism and want maximum power on every shot, NUPROL 4.0 is the definitive high-pressure solution.

Range Overview:

The NUPROL Gas Range is the flagship product line that gave the brand its name — “NUPROL” meaning New Propellant. From the earliest development stages, the goal was simple: deliver a modern, high-performance gas system engineered specifically for airsoft, offering players reliable pressure levels, predictable cycling and long-term equipment care. Today, the range spans multiple pressure grades and silicone-free alternatives, each built to serve different replicas, climates and performance requirements. Every blend is formulated on a refined propane base and enhanced with NUPROL’s trace additive expansion system, a micro-dose package that improves gas expansion, stabilises pressure and maintains consistent FPS shot after shot. Whether players need a low-pressure option for lightweight platforms, a balanced all-rounder, a high-pressure solution for full-metal builds or an ultra-power option for heavy GBB rifles, the NUPROL Gas Range delivers clean, dependable performance across all levels of play. Developed through continuous improvement and user feedback, the range reflects NUPROL’s commitment to engineering airsoft propellants that players can trust — from casual skirmishers to advanced technicians building precision platforms.

• Flagship “New Propellant” range that inspired the NUPROL name
• Multiple pressure levels for every replica and climate
• Trace additives improve expansion and pressure stability
• Silicone and silicone-free options for full maintenance control
• Clean, consistent FPS behaviour across extended use
• Formulated for pistols, SMGs, carbines and heavy rifles
• Designed to protect seals, valves and internal components
• Reliable performance in warm, moderate and cold environments
• Field-ready solutions from compact 85g cans to full-size cylinders
• Engineered for realism, reliability and user-defined performance

Brand Statement:

NUPROL is a leading force in the airsoft industry, delivering a comprehensive range of high-quality products from consumables to replicas, attachments to upgrades. With extensive industry knowledge and a commitment to reliability, NUPROL is a brand that Airsoft Players can trust in—backed by experience, innovation, and trusted performance.

Safety Information:

This product is supplied in a pressurised container and contains flammable contents. Keep away from heat sources, sparks, open flames and hot surfaces. Do not pierce or burn the container, even when empty. Protect from direct sunlight and do not expose to temperatures above 50°C. Store out of reach of children and use only as directed.