166 Insert/Outsert - 12 pack

Altra Reinforced Concentric Outset System (A.R.C.O.S.) inserts and outserts are made of 7075-T6 aluminum and secure arrows for durability and precision. Comes in four sizes and 12-pack quantity.

• The insert secures into the arrow shaft at a depth of 0.875
• The outsert threads onto the insert and encapsulates the leading end of the arrow at 0.43
• Essential rubber O-rings aid in locking the outsert in place, reducing vibration and improving concentricity