CTI240 AeroConcept Carbon Inner Tube (12)

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Firenock AeroConcept Carbon Inner Tubes are made of high modulus carbon tube with 6 inches length. These tubes are specially made to integrate with Firenock AeroInsert H (double shoulder type) inserts to form AeroConcept System. AeroConcept System can strengthen and stiffen the arrow (i.e. increase spine) especially the arrow front end without adding much weight to the entire arrow shaft. Moreover, precise weight adjustment of the entire arrow can be achieved by just adjusting the length of the carbon inner tube (i.e. a longer tube = greater weight and faster arrow straightness recovery or vice versa). 


  • 12pc 0.242 OD Carbon Inner Tubes ~5.2GPI or ~31gn for a 6" tube


  • Clean arrow shaft with acetone before installation
  • Use slow set epoxy for installation (e.g. Firenock Epoxy AGUSSE)


  • 5
    Great Performance

    Posted by Robert Reis on Aug 17th 2022

    I installed the Aeroconcept inner tubes after watching a YouTube video testing the durability of arrow components. I was relieved after hitting a post holding up a bale for target practice. The field point tip split in two. The arrow shaft sustained no damage. The inner tube was also instrumental in setting up the FOC that I was planning on. My arrows are flying true and I have no concerns about the durability of my arrows.