Engineered to integrate seamlessly with the original nozzle, this NPAS Adjuster and valve set is purpose-built for the Tokyo Marui AKM GBB, delivering precise control over muzzle energy without compromising reliability. Fine-tune your AKM’s output with confidence — this system allows for reductions of 100+ FPS, enabling stable use of heavier BBs while maintaining consistent gas efficiency.

Designed with real-world field limits in mind, the NPAS allows your AKM to operate around ~1.1 joules on original TM specification, depending on gas choice, hop-up, and barrel configuration. As with any GBBR, heavier BB weights may require additional adjustment due to joule creep.

Key benefits:

• Purpose-built for the Tokyo Marui AKM GBB
• Adjustable output with 100+ FPS reduction capability (setup dependent)
• Optimized for use with heavier BBs at ~1.1–1.14 J depending on your setup
• Designed to function flawlessly with the original TM nozzle for dependable cycling

Important notes:

• Actual FPS and joule output will vary based on gas type, inner barrel length, and hop-up setup. Always chrono your rifle and ensure compliance with local laws and field limits.
• Intentional play exists between the NPAS valve grooves and backplate arms. This is by design and allows the valve to freely snap back after each shot, ensuring proper spring function and consistent operation.