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GATE Enterprise

EON PROTECTOR Cylinder Head [CNC] rev. 3

EON PROTECTOR Cylinder Head [CNC] rev. 3

Regular price 17,02 EUR
Regular price 19,77 EUR Sale price 17,02 EUR
Sale Sold out
Tax included. Shipping calculated at checkout.
Lowest price last 30 days: 14,30 EUR (August 28, 2023)

Color may vary slightly depending on batch.

*Free express shipping via courier on all orders over 250 EUR

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The cylinder head designed to prolong gearbox shell life and provide the perfect seal to achieve best results. The shock-absorbing bumper noticeably increases gearbox life and limits the wear of the piston head. Thanks to high-quality aircraft-grade aluminum CNC machining, the Protector Cylinder Head guarantees a precise fit and high tolerances between the nozzle and its guide, eliminating the mid-cap syndrome.


  • Designed especially for standard and high-performance builds
  • Two shock absorbing bumpers of different hardness, prolonging gearbox shell life
  • Ultra-high quality of aircraft-grade aluminum CNC machining
  • Precise fitting with the nozzle eliminating the mid-cap syndrome
  • High tolerances between the nozzle and its guide
  • No limits in spring power
  • No AEG modification required
  • Dedicated especially to pros and skilled users


  • All standard AEG cylinders
  • All standard AEG piston heads
  • All standard O-rings

Kit contents:

  • PROTECTOR Cylinder Head – Aluminum
  • 2 shock absorbing bumpers of varied hardness: 40°ShA & 60°ShA
  • 2 o-rings
  • QR Code containing QuickStart Guide

The price applies to 1 PROTECTOR Cylinder Head.

Please note that due to different screen settings and light conditions, the color of the products in the pictures may be slightly different than the actual item. Color differences may also occur between different batches of the product.

Product Changelog

Revision 3

  • Enlarged the head centering openings along the axis-increased compatibility with gearbox shells

  • Increased the width of the tappet plate—enhancing compatibility with other manufacturers' tappet plates

  • Increased the diameter of the bumper, which reduces the amount of air lost during compression

  • Increased the chamfer going into the cylinder head tube, resulting in faster and more orderly air flow

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