Ensures tight seal between insert and outsert for optimal arrow performance
Reduces vibration and improves concentricity for more accurate arrow flight
Easy installation for quick maintenance and minimal downtime
Compact 12-pack provides on-demand supply for technicians and field use
Durable construction extends the life of Altra 166 inserts
Summarized by Shop
The Pinnacle of Precision & Performance™ Altra replacement O-rings for the A.R.C.O.S. are essential in the insert/outsert system as they aid in locking the outsert in place, reducing vibration and improving concentricity between the outsert to the insert for a more precise arrow set up and down range accuracy.