Front of Center

Front of Center (FOC) describes how far the center of mass of an arrow is located in front of its geometric center. It is expressed as a percentage and indicates how much of the arrow’s weight is shifted toward the tip.

FOC plays an important role in arrow tuning and significantly affects the stabilization characteristics of the system:

• Higher FOC → more stable flight, better penetration
• Lower FOC → often faster, flatter trajectory

It influences flight behavior and overall tuning. FOC is affected by point weight, insert weight, and shaft selection.