**PRE ORDER** NUPROL-ZERO Silicone Free Airsoft Gas 300g (4.0 (Heavy Bolt))

PRE-ORDER ONLY, NO CURRENT STOCK AVAILABLE. GOODS WILL BE DISPATCHED UPON ARRIVAL, CONTACT US FOR FURTHER INFORMATION
Expected Due Date is w/c 23-Mar-26

Ultra-high-pressure silicone-free 300g airsoft gas developed for clean, controlled maximum output in heavy bolt and high-mass GBB platforms.

Product Features:

• 4.ZERO ultra-high-pressure performance grade
• 300g full-size cylinder
• Silicone-free formulation
• Trace additive expansion system
• Optimised for heavy bolt rifles and DMR platforms
• Supports extreme mechanical load
• Designed for manual lubrication routines
• Stable output in harsh or cold conditions

NUPROL 4.ZERO is the highest-pressure silicone-free formulation in the NUPROL gas structure, engineered for heavy bolt rifles, DMR platforms and reinforced high-mass gas blowback systems. Matching the output profile of 4.0 while eliminating silicone content, 4.ZERO delivers maximum operating force within a clean internal environment.

Heavy steel bolts, extended travel systems and upgraded recoil assemblies require substantial driving pressure to maintain reliable cycling. 4.ZERO provides the ultra-high-pressure output necessary to overcome this mechanical resistance while maintaining a controlled and predictable pressure curve.

The blend incorporates NUPROL’s advanced micro-dose trace additive expansion system to promote rapid and stable gas expansion during each firing cycle. This supports consistent recoil impulse and stable FPS behaviour even under sustained or cold-weather use. For advanced users managing lubrication independently and running high-performance rifle builds, 4.ZERO delivers uncompromising power with refined internal control.

Contents:

(x1) NUPROL Airsoft Gas (4.ZERO-300g)

Range Overview:

The NUPROL Gas Range is the flagship New Propellant platform developed specifically for airsoft gas blowback performance. Built around a refined propane base and enhanced with a proprietary micro-dose trace additive expansion system, the range is engineered to deliver stable pressure output, predictable cycling and consistent FPS behaviour across a wide variety of replica types and environmental conditions.

Spanning low-power 1.0, balanced all-round 2.0, high-pressure 3.0 and ultra-high-pressure 4.0, the range supports everything from lightweight plastic-slide pistols to full-metal rifles and heavy bolt platforms. Each pressure grade is tuned to suit different mechanical loads, climates and performance requirements, allowing players and technicians to select a propellant that matches their platform rather than forcing a compromise.

Alongside the silicone-lubricated blends, the ZERO series provides silicone-free alternatives in 2.0, 3.0 and 4.0 pressure grades. These clean-running formulations are designed for users who prefer to manage lubrication manually, reducing internal oil residue and supporting precision-tuned hop units, tight-barrel systems and upgraded builds.

The portfolio also includes a compact 85g MINI format for field carry and quick top-ups, as well as a comprehensive Supply Pack containing multiple cans across the pressure spectrum for retail shelves, site fleets and workshop environments. Together, the NUPROL Gas Range delivers a complete, structured propellant system designed around realism, reliability and user-controlled performance.

• Flagship New Propellant range engineered specifically for airsoft GBB platforms
• Full pressure spectrum from low-power 1.0 through ultra-high-pressure 4.0
• Available in both silicone-lubricated and silicone-free ZERO formulations
• Micro-dose trace additive system for controlled expansion and pressure stability
• Consistent FPS behaviour and reliable cycling across varied climates
• Designed for pistols, SMGs, carbines, rifles and heavy bolt systems
• Options for lightweight slides, full-metal builds and high-mass rifle platforms
• Clean-running ZERO variants for precision-tuned and upgraded setups
• Formats from compact 85g field cans to full-size 300g cylinders
• Mixed Supply Pack available for complete retail and site stocking

Brand Statement:

NUPROL is a leading brand within the airsoft industry, delivering a comprehensive range of products covering consumables, replicas, attachments, and upgrades. Built on extensive industry knowledge and hands on experience, NUPROL focuses on practical design, consistent quality, and dependable performance. With a strong emphasis on reliability and usability, NUPROL products are developed to support airsoft players, retailers, and sites across all levels of the sport. From everyday essentials to advanced equipment, NUPROL continues to provide trusted solutions that perform where it matters most.

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.