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AirsoftPro NBU CNC Aluminum Flat Piston Head with Bearing

The AirsoftPro NBU CNC Aluminum Flat Piston Head with Bearing is a durable upgrade piston head designed for New Bore-Up (NBU) air system AEG airsoft guns. It combines a lightweight aluminum body, a ball bearing, and dual O-rings for improved air seal and more precise piston guidance inside the cylinder. It is an excellent choice for building a reliable and high-performance air system.

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ASPRO277

: AIRSOFTPRO

Accessories

  • 0,85 € In Stock

    : AIRSOFTPRO

    ASPRO108

    AirsoftPro replacement O-ring for NBU piston head is a set of 2 sealing O-rings designed to restore proper sealing of New Bore-Up (NBU) piston heads in AEG airsoft guns. A worn or damaged seal can cause compression loss and inconsistent performance. These O-rings are a practical spare part for routine maintenance and servicing of the air system.

    0,85 €
    Out of stock
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    Pre-order with unknown delivery date.

AirsoftPro NBU Aluminum Flat Piston Head with Bearing

The AirsoftPro piston head is designed exclusively for New Bore-Up cylinders. Its aluminum construction provides excellent durability while keeping weight low. Six air channels direct compressed air beneath the main O-ring, causing it to expand during firing for an improved air seal. A second O-ring is used for precise centering of the piston head inside the cylinder, helping to ensure smooth piston movement. The piston head also features a ball bearing that allows the spring to rotate during compression, reducing resistance while cocking. A special locking washer between the piston head and piston helps prevent the piston head from loosening during operation.

Key Features

New Bore-Up Design

Designed exclusively for NBU air systems used in higher-performance AEG builds.

Aluminum Construction

The lightweight aluminum body offers excellent resistance to wear and repeated impacts.

Improved Air Seal and Piston Guidance

Six air channels improve the sealing of the main O-ring, while the second O-ring helps keep the piston head accurately centered inside the cylinder.

Ball Bearing

Allows the spring to rotate during compression, reducing resistance and contributing to smoother operation.

Anti-Loosening Design

A special locking washer between the piston head and piston helps prevent the assembly from loosening during use.

Technical Specifications

  • Type: New Bore-Up (NBU) flat piston head
  • Material: Aluminum
  • Compatibility: New Bore-Up (NBU) cylinders only
  • Bearing: Yes, ball bearing

Package Contents

  • AirsoftPro NBU Aluminum Flat Piston Head
  • Ball bearing
  • Mounting screw
  • Locking washer
  • Screw head washer
VariantsNBU
ColorRed
Piston headMetal