Altra Insert And Outsert .166 350 Spine

The Altra Insert and Outsert 350 Spine is a precision arrow component engineered for hunters and competitive shooters who demand accuracy and consistency downrange. This insert-outsert combination addresses a critical need: achieving perfect spine-to-bow harmony and maintaining structural integrity at the point of impact.

The 350 spine rating indicates the shaft's stiffness, ensuring compatibility with modern compound and traditional bows. The insert provides reinforcement at the nock end of the shaft, while the outsert protects the broadhead-mounting end from delamination during impact with hard targets. This two-piece approach effectively distributes stress, resulting in arrows that maintain flight characteristics shot after shot.

Hunters working with carbon or aluminum shafts in the 350 spine range will find this Altra component indispensable, particularly for enhancing durability and performance. Its minimal weight of just 0.09 lbs allows for tuning overall arrow weight without sacrificing durability or risking dynamic spine problems.