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Further Information
Arc Systeme
Arc Systeme BT4

Arc Systeme BT4

The BT4 (back tension 4 finger) is a release aid developed for the highest level with close collaboration with Pierre-Julien Deloche.

The perfect grip allows greater control of the distribution of forces by setting the removable thumb and little finger elements.

The rotation adjustment is made using a magnetic micrometer screw bringing precision and ease of use. You also have the opportunity to shoot with or without a click thanks to an innovative adjustable cam system featuring graduated markings for enhanced accuracy and without any need to dismantle the mechanism.

Available in four sizes, X-Small, Small, Medium, Large.

All models feature a black body. From September 2018 the only colour option is black/silver.

Product ref C2.305


  • X-Small Silver
  • Small Silver
  • Medium Silver
  • Large Silver

Dimensions (from thumb to little finger):

  • X-Small - TBC
  • Small - 70mm
  • Medium - 75mm
  • Large - 80mm

Arc Systeme BT4 diagram