The AMS/Cajun style bowfishing reel mount is really easy to attach to the T15.
The limb support arm is attached to the handle with three 10-24 fasteners. The bowfishing reel mount is packaged with two longer 10-24 fasteners that sandwich the limb support arm to the handle. This is mounted to the same side as the arrow rest is mounted. The bowfishing reel mount has the same profile as the limb support arm, so when it is married up together it has the same look.
Using a hex wrench to remove the upper and lower fasteners from the limb support arm. Place the bowfishing reel mount on top the limb support arm and match the profiles. Then use the supplied, longer 10-24 fasteners to tighten the reel mount to the handle through the limb arm support.
Then you can attach your bowfishing reel to the reel mount!