Easton Sonic 6mm brass break-off inserts with adjustable weight from 50-75 grains. Small-diameter carbon compatible, 8-32 thread design for custom arrow building.
These Easton Sonic brass inserts are engineered for precision arrow building with small-diameter carbon shafts. Each 12-pack provides the flexibility to dial in your arrow's dynamic spine and overall weight.
Proper arrow weight is critical for accuracy and consistency. These adjustable inserts let you match your arrow's weight to your specific bow setup without guesswork. The break-off feature means you can start at maximum weight and reduce it incrementally until you achieve the perfect balance for your shooting style and equipment.
Whether you're building hunting arrows or target shafts, Easton Sonic inserts provide the precision foundation serious archers demand.