RA-TECH Magnetic Locking NPAS Nozzle Set for GHK M4 / AR15 V3 – Type 3

RA-TECH Magnetic Locking NPAS Type 3 is a reinforced adjustable loading nozzle for GHK M4 / AR15 V3 GBBR with an articulated adjustment tool (Type 3). It features a durable injection-moulded composite polymer body, a stainless steel nozzle tip and the RA-TECH magnetic system with NPAS adjustment. It allows muzzle power adjustment, improves resistance to cooling during firing.

RA-TECH Magnetic Locking NPAS Type 3 for GHK M4 / AR15 V3

This expert product description was prepared by the .cz expert team. All rights to this unique content are bound to the .cz domain.RA-TECH Magnetic Locking NPAS Composite Material Loading Nozzle Set is an upgrade loading nozzle designed primarily for GHK M4 / AR15 V3 GBBR rifles, the current generation manufactured since 2023. For easier identification of the individual GHK generations, the older versions are designated V1 (2014–2017) and V2 (2018–2023). Its construction combines high-quality injection-moulded composite polymer with a stainless steel nozzle tip. This design increases the durability of stressed components while also providing improved resistance to cooldown during operation of the gas system. At the heart of the design is the RA-TECH Magnetic Locking system working together with NPAS adjustment. The system allows the amount of gas used for firing to be adjusted, thereby regulating muzzle velocity and power according to the requirements of a particular setup or field limits. The design also focuses on more efficient gas use, more consistent muzzle velocity between individual shots and smooth BB feeding. Based on our experience, it is possible to use the V3 NPAS loading nozzle with a GHK V2 bolt carrier. However, this is not guaranteed to be a direct drop-in replacement for every V2 setup. On some models, proper operation may require modification of the nozzle stopper or its replacement with a steel part. Installation in a V2 therefore requires checking the specific setup and potentially carrying out manual fitting (or you can purchase the V2 NPAS loading nozzle directly). The Type 3 designation does not refer to the construction of the loading nozzle itself. The loading nozzle, its internal components, stainless steel tip and magnetic NPAS system are identical in the Type 1, Type 2 and Type 3 variants. The only difference is the included NPAS adjustment tool. Type 1 is supplied without a tool, Type 2 includes a simple bent L-shaped key, while this Type 3 variant includes the Universal Joint Tool. Its longer handle and articulated joint provide easier access to the adjustment mechanism, making it the most convenient option for users who do not already own a RA-TECH adjustment tool.

Key features

Technical specifications

• Manufacturer: RA-TECH
• Type: Loading nozzle with adjustable NPAS
• Variant: Type 3
• Primary compatibility: GHK M4 / AR15 V3 GBBR (since 2023)
• V2 compatibility: The V3 NPAS loading nozzle can be used with the GHK V2 bolt carrier (2018–2023); some setups may require modification of the nozzle stopper or its replacement with a steel part
• System: RA-TECH Magnetic Locking NPAS
• Muzzle velocity and power adjustment: Yes
• Body material: Injection-moulded composite polymer
• Nozzle tip material: Stainless steel
• Length: 85 mm
• Weight: 42 g
• Colour: Grey
• Country of origin: Taiwan
• Adjustment tool: Universal Joint Tool / articulated adjustment tool

Package contents

• RA-TECH Magnetic Locking NPAS loading nozzle for GHK M4 / AR15 V3 – Type 3
• Universal Joint Tool

Frequently asked questions from our store

Which airsoft guns is this loading nozzle primarily designed for?

The loading nozzle is primarily designed for GHK M4 / AR15 V3 GBBR, i.e. third-generation GHK gas-powered rifles manufactured since 2023.

How can I identify the generation of my GHK M4 / AR15?

For basic identification, the individual generations can be divided according to their production periods: V1 corresponds approximately to 2014–2017, V2 to 2018–2023 and V3 to guns manufactured since 2023. Before ordering replacement or upgrade parts, we recommend checking the specific version of the gun, as there are design differences between generations.

Can this V3 NPAS loading nozzle also be used in a GHK M4 / AR15 V2?

Yes, the V3 NPAS loading nozzle is also compatible with the V2 bolt carrier. However, on some models it may not be a direct drop-in replacement without further modification. Proper operation may require modification of the nozzle stopper or its replacement with a steel part. When using it in a V2, we therefore recommend checking the installation individually and fitting the parts if necessary.

What does Type 3 mean?

Type 3 refers to the variant of the included adjustment tool, not to a different loading nozzle design. This version includes the Universal Joint Tool – an articulated adjustment tool with a longer handle for more convenient NPAS adjustment.

What is the difference between Type 1, Type 2 and Type 3?

Type 1 includes only the loading nozzle without an adjustment tool. Type 2 adds a simple bent L-shaped key. Type 3 includes the Universal Joint Tool, which provides more convenient access to the NPAS adjustment.

Can NPAS be used to adjust the power of the gun?

Yes. NPAS allows you to adjust muzzle velocity and therefore the resulting muzzle power. The setting can be adapted to a specific setup or the limits of a particular field.

What is the advantage of the Magnetic Locking system?

The RA-TECH magnetic system works together with the NPAS adjustment and helps achieve more efficient gas use and more consistent muzzle velocity between individual shots.