Altra 204 Insert and Outsert 400 Spine System

In the realm of archery, precision and durability are paramount. The Altra Reinforced Concentric Outset System (A.R.C.O.S.) is engineered specifically for Altra Arrows 204 Shafts to deliver on both fronts with authority. Crafted from robust 7075-T6 aluminum, this system promises unmatched performance by ensuring each component functions seamlessly in unison.

At its core, the A.R.C.O.S. insert penetrates deeply into the arrow shaft at a measure of 0.875 inches, providing a solid foundation for stability upon release. This depth ensures that your arrows maintain structural integrity under stress.

The outsert complements this design by threading directly onto the insert and enveloping the leading end of the arrow by an additional 0.43 inches. This configuration not only enhances durability but also fortifies against impact damage during flight or upon target contact.

Precision is further enhanced through pre-installed rubber O-rings which serve to lock the outsert firmly in position while concurrently minimizing vibration—a critical element for achieving superior concentricity in your arrow setup.

Such meticulous attention to detail translates into increased downrange accuracy—allowing you as an archer to focus less on equipment failure and more on perfecting your aim.